120=2x-(15-7x)

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Solution for 120=2x-(15-7x) equation:


Simplifying
120 = 2x + -1(15 + -7x)
120 = 2x + (15 * -1 + -7x * -1)
120 = 2x + (-15 + 7x)

Reorder the terms:
120 = -15 + 2x + 7x

Combine like terms: 2x + 7x = 9x
120 = -15 + 9x

Solving
120 = -15 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
120 + -9x = -15 + 9x + -9x

Combine like terms: 9x + -9x = 0
120 + -9x = -15 + 0
120 + -9x = -15

Add '-120' to each side of the equation.
120 + -120 + -9x = -15 + -120

Combine like terms: 120 + -120 = 0
0 + -9x = -15 + -120
-9x = -15 + -120

Combine like terms: -15 + -120 = -135
-9x = -135

Divide each side by '-9'.
x = 15

Simplifying
x = 15

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