x-81=12x+128

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Solution for x-81=12x+128 equation:


Simplifying
x + -81 = 12x + 128

Reorder the terms:
-81 + x = 12x + 128

Reorder the terms:
-81 + x = 128 + 12x

Solving
-81 + x = 128 + 12x

Solving for variable 'x'.

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

Add '-12x' to each side of the equation.
-81 + x + -12x = 128 + 12x + -12x

Combine like terms: x + -12x = -11x
-81 + -11x = 128 + 12x + -12x

Combine like terms: 12x + -12x = 0
-81 + -11x = 128 + 0
-81 + -11x = 128

Add '81' to each side of the equation.
-81 + 81 + -11x = 128 + 81

Combine like terms: -81 + 81 = 0
0 + -11x = 128 + 81
-11x = 128 + 81

Combine like terms: 128 + 81 = 209
-11x = 209

Divide each side by '-11'.
x = -19

Simplifying
x = -19

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