3x-12=3(x-1)-15

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Solution for 3x-12=3(x-1)-15 equation: 


Simplifying
3x + -12 = 3(x + -1) + -15

Reorder the terms:
-12 + 3x = 3(x + -1) + -15

Reorder the terms:
-12 + 3x = 3(-1 + x) + -15
-12 + 3x = (-1 * 3 + x * 3) + -15
-12 + 3x = (-3 + 3x) + -15

Reorder the terms:
-12 + 3x = -3 + -15 + 3x

Combine like terms: -3 + -15 = -18
-12 + 3x = -18 + 3x

Add '-3x' to each side of the equation.
-12 + 3x + -3x = -18 + 3x + -3x

Combine like terms: 3x + -3x = 0
-12 + 0 = -18 + 3x + -3x
-12 = -18 + 3x + -3x

Combine like terms: 3x + -3x = 0
-12 = -18 + 0
-12 = -18

Solving
-12 = -18

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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