12x+81=9x+108

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Solution for 12x+81=9x+108 equation:


Simplifying
12x + 81 = 9x + 108

Reorder the terms:
81 + 12x = 9x + 108

Reorder the terms:
81 + 12x = 108 + 9x

Solving
81 + 12x = 108 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
81 + 12x + -9x = 108 + 9x + -9x

Combine like terms: 12x + -9x = 3x
81 + 3x = 108 + 9x + -9x

Combine like terms: 9x + -9x = 0
81 + 3x = 108 + 0
81 + 3x = 108

Add '-81' to each side of the equation.
81 + -81 + 3x = 108 + -81

Combine like terms: 81 + -81 = 0
0 + 3x = 108 + -81
3x = 108 + -81

Combine like terms: 108 + -81 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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