x+81=3x-39

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Solution for x+81=3x-39 equation:


Simplifying
x + 81 = 3x + -39

Reorder the terms:
81 + x = 3x + -39

Reorder the terms:
81 + x = -39 + 3x

Solving
81 + x = -39 + 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.
81 + x + -3x = -39 + 3x + -3x

Combine like terms: x + -3x = -2x
81 + -2x = -39 + 3x + -3x

Combine like terms: 3x + -3x = 0
81 + -2x = -39 + 0
81 + -2x = -39

Add '-81' to each side of the equation.
81 + -81 + -2x = -39 + -81

Combine like terms: 81 + -81 = 0
0 + -2x = -39 + -81
-2x = -39 + -81

Combine like terms: -39 + -81 = -120
-2x = -120

Divide each side by '-2'.
x = 60

Simplifying
x = 60

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