120=2x+(x-7)

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


Simplifying
120 = 2x + (x + -7)

Reorder the terms:
120 = 2x + (-7 + x)

Remove parenthesis around (-7 + x)
120 = 2x + -7 + x

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

Combine like terms: 2x + x = 3x
120 = -7 + 3x

Solving
120 = -7 + 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 = -7 + 3x + -3x

Combine like terms: 3x + -3x = 0
120 + -3x = -7 + 0
120 + -3x = -7

Add '-120' to each side of the equation.
120 + -120 + -3x = -7 + -120

Combine like terms: 120 + -120 = 0
0 + -3x = -7 + -120
-3x = -7 + -120

Combine like terms: -7 + -120 = -127
-3x = -127

Divide each side by '-3'.
x = 42.33333333

Simplifying
x = 42.33333333

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