3x+120=x+20

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Solution for 3x+120=x+20 equation:


Simplifying
3x + 120 = x + 20

Reorder the terms:
120 + 3x = x + 20

Reorder the terms:
120 + 3x = 20 + x

Solving
120 + 3x = 20 + x

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 + 3x + -1x = 20 + x + -1x

Combine like terms: 3x + -1x = 2x
120 + 2x = 20 + x + -1x

Combine like terms: x + -1x = 0
120 + 2x = 20 + 0
120 + 2x = 20

Add '-120' to each side of the equation.
120 + -120 + 2x = 20 + -120

Combine like terms: 120 + -120 = 0
0 + 2x = 20 + -120
2x = 20 + -120

Combine like terms: 20 + -120 = -100
2x = -100

Divide each side by '2'.
x = -50

Simplifying
x = -50

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