120=50-2x

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Solution for 120=50-2x equation:


Simplifying
120 = 50 + -2x

Solving
120 = 50 + -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.
120 + 2x = 50 + -2x + 2x

Combine like terms: -2x + 2x = 0
120 + 2x = 50 + 0
120 + 2x = 50

Add '-120' to each side of the equation.
120 + -120 + 2x = 50 + -120

Combine like terms: 120 + -120 = 0
0 + 2x = 50 + -120
2x = 50 + -120

Combine like terms: 50 + -120 = -70
2x = -70

Divide each side by '2'.
x = -35

Simplifying
x = -35

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