x+120-3x=10

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Solution for x+120-3x=10 equation:


Simplifying
x + 120 + -3x = 10

Reorder the terms:
120 + x + -3x = 10

Combine like terms: x + -3x = -2x
120 + -2x = 10

Solving
120 + -2x = 10

Solving for variable 'x'.

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

Add '-120' to each side of the equation.
120 + -120 + -2x = 10 + -120

Combine like terms: 120 + -120 = 0
0 + -2x = 10 + -120
-2x = 10 + -120

Combine like terms: 10 + -120 = -110
-2x = -110

Divide each side by '-2'.
x = 55

Simplifying
x = 55

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