2x-12=9x+9

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Solution for 2x-12=9x+9 equation:


Simplifying
2x + -12 = 9x + 9

Reorder the terms:
-12 + 2x = 9x + 9

Reorder the terms:
-12 + 2x = 9 + 9x

Solving
-12 + 2x = 9 + 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.
-12 + 2x + -9x = 9 + 9x + -9x

Combine like terms: 2x + -9x = -7x
-12 + -7x = 9 + 9x + -9x

Combine like terms: 9x + -9x = 0
-12 + -7x = 9 + 0
-12 + -7x = 9

Add '12' to each side of the equation.
-12 + 12 + -7x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + -7x = 9 + 12
-7x = 9 + 12

Combine like terms: 9 + 12 = 21
-7x = 21

Divide each side by '-7'.
x = -3

Simplifying
x = -3

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