-3x-12=7-3x

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Solution for -3x-12=7-3x equation: 


Simplifying
-3x + -12 = 7 + -3x

Reorder the terms:
-12 + -3x = 7 + -3x

Add '3x' to each side of the equation.
-12 + -3x + 3x = 7 + -3x + 3x

Combine like terms: -3x + 3x = 0
-12 + 0 = 7 + -3x + 3x
-12 = 7 + -3x + 3x

Combine like terms: -3x + 3x = 0
-12 = 7 + 0
-12 = 7

Solving
-12 = 7

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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