120=2x-(15-x)

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


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

Reorder the terms:
120 = -15 + 2x + 1x

Combine like terms: 2x + 1x = 3x
120 = -15 + 3x

Solving
120 = -15 + 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.
120 + -3x = -15 + 3x + -3x

Combine like terms: 3x + -3x = 0
120 + -3x = -15 + 0
120 + -3x = -15

Add '-120' to each side of the equation.
120 + -120 + -3x = -15 + -120

Combine like terms: 120 + -120 = 0
0 + -3x = -15 + -120
-3x = -15 + -120

Combine like terms: -15 + -120 = -135
-3x = -135

Divide each side by '-3'.
x = 45

Simplifying
x = 45

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