12x-156=5x-9

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Solution for 12x-156=5x-9 equation:


Simplifying
12x + -156 = 5x + -9

Reorder the terms:
-156 + 12x = 5x + -9

Reorder the terms:
-156 + 12x = -9 + 5x

Solving
-156 + 12x = -9 + 5x

Solving for variable 'x'.

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

Add '-5x' to each side of the equation.
-156 + 12x + -5x = -9 + 5x + -5x

Combine like terms: 12x + -5x = 7x
-156 + 7x = -9 + 5x + -5x

Combine like terms: 5x + -5x = 0
-156 + 7x = -9 + 0
-156 + 7x = -9

Add '156' to each side of the equation.
-156 + 156 + 7x = -9 + 156

Combine like terms: -156 + 156 = 0
0 + 7x = -9 + 156
7x = -9 + 156

Combine like terms: -9 + 156 = 147
7x = 147

Divide each side by '7'.
x = 21

Simplifying
x = 21

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