5x+138=3x+120

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Solution for 5x+138=3x+120 equation:


Simplifying
5x + 138 = 3x + 120

Reorder the terms:
138 + 5x = 3x + 120

Reorder the terms:
138 + 5x = 120 + 3x

Solving
138 + 5x = 120 + 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.
138 + 5x + -3x = 120 + 3x + -3x

Combine like terms: 5x + -3x = 2x
138 + 2x = 120 + 3x + -3x

Combine like terms: 3x + -3x = 0
138 + 2x = 120 + 0
138 + 2x = 120

Add '-138' to each side of the equation.
138 + -138 + 2x = 120 + -138

Combine like terms: 138 + -138 = 0
0 + 2x = 120 + -138
2x = 120 + -138

Combine like terms: 120 + -138 = -18
2x = -18

Divide each side by '2'.
x = -9

Simplifying
x = -9

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