12x-138=6x-12

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Solution for 12x-138=6x-12 equation:


Simplifying
12x + -138 = 6x + -12

Reorder the terms:
-138 + 12x = 6x + -12

Reorder the terms:
-138 + 12x = -12 + 6x

Solving
-138 + 12x = -12 + 6x

Solving for variable 'x'.

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

Add '-6x' to each side of the equation.
-138 + 12x + -6x = -12 + 6x + -6x

Combine like terms: 12x + -6x = 6x
-138 + 6x = -12 + 6x + -6x

Combine like terms: 6x + -6x = 0
-138 + 6x = -12 + 0
-138 + 6x = -12

Add '138' to each side of the equation.
-138 + 138 + 6x = -12 + 138

Combine like terms: -138 + 138 = 0
0 + 6x = -12 + 138
6x = -12 + 138

Combine like terms: -12 + 138 = 126
6x = 126

Divide each side by '6'.
x = 21

Simplifying
x = 21

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