12-3x=15-3x

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Solution for 12-3x=15-3x equation: 


Simplifying
12 + -3x = 15 + -3x

Add '3x' to each side of the equation.
12 + -3x + 3x = 15 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 + 0 = 15 + -3x + 3x
12 = 15 + -3x + 3x

Combine like terms: -3x + 3x = 0
12 = 15 + 0
12 = 15

Solving
12 = 15

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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