-12-8x=9-9x

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Solution for -12-8x=9-9x equation:


Simplifying
-12 + -8x = 9 + -9x

Solving
-12 + -8x = 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 + -8x + 9x = 9 + -9x + 9x

Combine like terms: -8x + 9x = 1x
-12 + 1x = 9 + -9x + 9x

Combine like terms: -9x + 9x = 0
-12 + 1x = 9 + 0
-12 + 1x = 9

Add '12' to each side of the equation.
-12 + 12 + 1x = 9 + 12

Combine like terms: -12 + 12 = 0
0 + 1x = 9 + 12
1x = 9 + 12

Combine like terms: 9 + 12 = 21
1x = 21

Divide each side by '1'.
x = 21

Simplifying
x = 21

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