9x-9=12x

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Solution for 9x-9=12x equation:


Simplifying
9x + -9 = 12x

Reorder the terms:
-9 + 9x = 12x

Solving
-9 + 9x = 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.
-9 + 9x + -12x = 12x + -12x

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

Combine like terms: 12x + -12x = 0
-9 + -3x = 0

Add '9' to each side of the equation.
-9 + 9 + -3x = 0 + 9

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

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

Divide each side by '-3'.
x = -3

Simplifying
x = -3

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