Question

BLE
15
(3).x + 18 = 2x - 7​

Answer 1

Answer:

Simplifying

3x + -18 = 2x + 7

Reorder the terms:

-18 + 3x = 2x + 7

Reorder the terms:

-18 + 3x = 7 + 2x

Solving

-18 + 3x = 7 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.

-18 + 3x + -2x = 7 + 2x + -2x

Combine like terms: 3x + -2x = 1x

-18 + 1x = 7 + 2x + -2x

Combine like terms: 2x + -2x = 0

-18 + 1x = 7 + 0

-18 + 1x = 7

Add '18' to each side of the equation.

-18 + 18 + 1x = 7 + 18

Combine like terms: -18 + 18 = 0

0 + 1x = 7 + 18

1x = 7 + 18

Combine like terms: 7 + 18 = 25

1x = 25

Divide each side by '1'.

x = 25

Simplifying

x = 25

Answer 2

Answer:

25

Step-by-step explanation:

x+18 = 2x-7

18+7 = 2x - x

25 = x

x = 25

I think it's helped