solve for x 8(x+9)= -9x+21

Answer:

Step-by-step explanation:

(-2, 3 )     ; (4 , 7)

Distance = [tex]\sqrt{(x_{2}-x_{1})^{2}+(y_{2}-y_{1})^{2}}[/tex]

               [tex]=\sqrt{(4-[-2])^{2}+(7-3)^{2}}\\\\=\sqrt{(4+2)^{2}+(7-3)^{2}}\\\\=\sqrt{6^{2}+4^{2}}\\\\=\sqrt{36+16}\\\\=\sqrt{52}\\\\=\sqrt{2*2*13}\\\\=2\sqrt{13}[/tex]

Answer:

x = -6

Step-by-step explanation:

Simplifying

5x + 7 = 3x + -5

Reorder the terms:

7 + 5x = 3x + -5

Reorder the terms:

7 + 5x = -5 + 3x

Solving

7 + 5x = -5 + 3x

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-3x' to each side of the equation.

7 + 5x + -3x = -5 + 3x + -3x

Combine like terms: 5x + -3x = 2x

7 + 2x = -5 + 3x + -3x

Combine like terms: 3x + -3x = 0

7 + 2x = -5 + 0

7 + 2x = -5

Add '-7' to each side of the equation.

7 + -7 + 2x = -5 + -7

Combine like terms: 7 + -7 = 0

0 + 2x = -5 + -7

2x = -5 + -7

Combine like terms: -5 + -7 = -12

2x = -12

Divide each side by '2'.

x = -6

Simplifying

x = -6

The solution to the equation 5x + 7 = 3x - 5 is x = -6.

We have,

To solve the equation 5x + 7 = 3x - 5, we need to isolate the variable x on one side of the equation.

Here's how we can do that:

Start by subtracting 3x from both sides of the equation to move all the x terms to one side:

5x + 7 - 3x = 3x - 5 - 3x

Simplifying, we get:

2x + 7 = -5

Next, subtract 7 from both sides of the equation to isolate the term with x:

2x + 7 - 7 = -5 - 7

Simplifying, we get:

2x = -12

Now, to solve for x, we divide both sides of the equation by 2:

(2x)/2 = (-12)/2

Simplifying, we get:

x = -6

Thus,

The solution to the equation 5x + 7 = 3x - 5 is x = -6.

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Answer:

i hope u accidentally hit the X and it doesn't save your work

Step-by-step explanation:

Answer:

32+(-10)

Step-by-step explanation:

i beleive thats what it is

Answer:

y = mx + b slope(m) = 1/2 (-2,1)...x = -2 and y = 1 now we sub and solve for b, the y int 1 = 1/2(-2) + b 1 = -1 + b 1 + 1 = b 2 = b so ur equation is : y = 1/2x + 2 <== here is one answer y - y1 = m(x - x1) (slope(m) = 1/2 (-2,1)...x1 = -2 and y1 = 1 now we sub y - 1 = 1/2(x - (-2) = y - 1 = 1/2(x + 2) <== here is another answer

Step-by-step explanation:

Answer:

b

Step-by-step explanation:

when you multiply out using FOIL (First Inner Outer Last) you get b

Answer:

8x² - 27x + 20

Step-by-step explanation:

Given

4x(2x - 3) - 5(3x - 4) ← distribute both parenthesis

= 8x² - 12x - 15x + 20 ← collect like terms

= 8x² - 27x + 20 ← in standard form

Answer:

-19x+20

Step-by-step explanation:

So we need to simplify this the first step is

4x(2x-3)  The first part of the equation

4x(2x) - 4x(3)

8x -12x

-4x

then the second part

-5 (3x-4)

-5(3x)+20

-15x+20

add togeter

-4x-15x

-19x

-19x+20

Answer:

The answer is 9.

Step-by-step explanation: Things to know: c is total cost and t tickets. 800 is the total cost so plug it in to c. You want to get t (tickets) alone.

original: c(t)=87.50t+12.50

Now with the 800: 800=87.50t+12.50

Subtract 12.50 to both sides: 787.5=87.50t

Divide 87.50 to both sides: 9=t

Hopefully this helped. :]

Answer: 18 miles

12 ÷ 4 = 3. So, we must multiply 3 by 6 to find how much Joe walks for 6 trips to school.

-------------------------------------------------------------------------------------------------------------------------

Now, we must multiply the number 6 by 3.

6 x 3 = 18

-------------------------------------------------------------------------------------------------------------------------

Answer = 18

Answer:

18 miles

Step-by-step explanation:

We can write ratios to solve

12 miles    x miles

----------  = ------------

4 trips          6 trips

Using cross products

12 *6 = 4x

72 = 4x

Divide by 4

72/4 = 4x/4

18 miles

Answer:

1

Step-by-step explanation:

x2 minus x1 over y2 minus y1

Answer:

-3/2

Step-by-step explanation:

-15/10 = -3/2 when you simplify

Answer:

41,300

you can take the 4.13 and put it in the first three spaces hope this helps

Answer:

its 41300 just add your powers, its like 4.13 to the ten-thousanth power

Step-by-step explanation:

put the 4 infront of the decimal and 13 behind, and move it and add places markers till you get where u need to go

(sorry, im not THAT good at explaining things -ω-

Answer:

No, The line x = 3 is not parallel to the line y = 1/3

Step-by-step explanation:

Here's What the graph looks like on Demos graphing calculator.

High Hopes^^

Barry-

Answer:

let's go...

Step-by-step explanation:

We should use this function to find the standard form the line :

[tex]y - y(given \: point) = (gradient) \times ( \: x - x(g \: p) \: ) \\ y - 4 = 5 \times (x - 3) \\ y - 4 = 5x - 15[/tex]

subtract the sides of the equation plus 4

[tex]y = 5x - 15 + 4 \\ y = 5x - 11[/tex]

And we're done buddy.

good luck ♥️♥️♥️♥️♥️.

Answer:

7

Step-by-step explanation:

Answer:

1.25x + 1.5y=25

Step-by-step explanation:

let the number of lip balms that can be bought be x and the notebooks be y then their total cost is 1.25x + 1.5y. The total $25 there for the equation becomes 1.25x + 1.5y=25.

The required linear equation can be used to determine how many of each prize she can buy is 1.2x + 1.50y = 25.

Given that,
Jung-Soon has $25 to spend on prizes for a game at the school fair. Lip balm costs $1.25 each, and mini-notebooks cost $1.50 each. Write a linear equation that can be used to determine how many of each prize she can buy is ot be determined.

The equation is the relationship between variables and represented as y = ax + b is an example of a polynomial equation.

Here,
Let the number of lip balm that can be purchased be x,  and the number of mini notebooks purchased be y,
according to the question,
1.2x + 1.50y = 25

Thus, the required linear equation can be used to determine how many of each prize she can buy is 1.2x + 1.50y = 25.

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AnswerI dont kow

Step-by-step explanation:

Answer:

4%

Step-by-step explanation:

Answer:

2.6 is the distance

Step-by-step explanation:

9.1 - 6.5 = 2.6

Respuesta: 50N

Explicación paso a paso:

Dado lo siguiente:.

Tensión (T) = 52,9 N

Masa (m) = 10,5 kg

La normal se obtiene usando la relación:

N = mg - T; donde N = normal, g = aceleración debida a la gravedad (9,8 m / s²)

N = mg - T

N = (10,5 * 9,8) - 52,9

N = 102,9 - 52,9

N = 50 N

Answer:

hey ¿How are you?

Step-by-step explanation:

bye

Answer:

This is a picture of a hexagon of equal sides and unequal angles.

Answer:

The rate of change or the slope is 7. (If you were to graph this, you would use 7/1.

Step-by-step explanation:

To find the slope when you're given two sets of points, you must find the distance from the y values and the distance from the x values!

Y values: distance from -2 to 5 is +7

X values: distance from -2 to -1 is +1

7/1 or just 7.

Hope this helps! :)

Answer:

0

Step-by-step explanation:

10 - 10 = 0

Answer:

Step-by-step explanation:

Let the number be  x

∴  x  −  10

plz mark as brainliest

Answer:

10.2

Step-by-step explanation:

Answer:

10

Step-by-step explanation:

Answer:

Side = [tex]5\sqrt5\ \text{feet}[/tex]

Step-by-step explanation:

Given that,

Area of a square room is 125 square feet

We need to find the length of one side of the room.

The area of a square shaped room is given by :

[tex]A=x^2[/tex]

Where, x is side of the square room

[tex]x=\sqrt{A} \\\\x=\sqrt{125}\\\\x=\sqrt{5\times 5\times 5}\\\\x=5\sqrt5\ \text{feet}[/tex]

So, the side of the room is [tex]5\sqrt5\ \text{feet}[/tex].

Answer:

7

Step-by-step explanation:

4x+12-2x=26

Or, 2x=26-12

Or, 2x=14

Or, x=7

Answer:

7.alternate interior

x=64

8. same side interior

x=12

same side exterior

x=12

Answer:

Step-by-step explanation:

7. alternate angle or opposite angle are equal

   128 = 2x

    x = 128 / 2

    x = 64

8.  interior angles = 180

    180 = 72 + (7x + 24)

    180 - 72 - 24 = 7x

     x = 84 / 7

     x = 12

9.   same side angle = 180

     180 = 65 + (11x - 17)

     180 - 65 + 17 = 11x

     x = 132 / 11

     x = 12

Answer:

x+10=yz

Step-by-step explanation: