7x-12=-138

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Solution for 7x-12=-138 equation: 


Simplifying
7x + -12 = -138

Reorder the terms:
-12 + 7x = -138

Solving
-12 + 7x = -138

Solving for variable 'x'.

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

Add '12' to each side of the equation.
-12 + 12 + 7x = -138 + 12

Combine like terms: -12 + 12 = 0
0 + 7x = -138 + 12
7x = -138 + 12

Combine like terms: -138 + 12 = -126
7x = -126

Divide each side by '7'.
x = -18

Simplifying
x = -18

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