120=2x+80+140-x

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Solution for 120=2x+80+140-x equation:


Simplifying
120 = 2x + 80 + 140 + -1x

Reorder the terms:
120 = 80 + 140 + 2x + -1x

Combine like terms: 80 + 140 = 220
120 = 220 + 2x + -1x

Combine like terms: 2x + -1x = 1x
120 = 220 + 1x

Solving
120 = 220 + 1x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
120 + -1x = 220 + 1x + -1x

Combine like terms: 1x + -1x = 0
120 + -1x = 220 + 0
120 + -1x = 220

Add '-120' to each side of the equation.
120 + -120 + -1x = 220 + -120

Combine like terms: 120 + -120 = 0
0 + -1x = 220 + -120
-1x = 220 + -120

Combine like terms: 220 + -120 = 100
-1x = 100

Divide each side by '-1'.
x = -100

Simplifying
x = -100

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