21x-6-15x+2=18x-8-12x+16

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Solution for 21x-6-15x+2=18x-8-12x+16 equation: 


Simplifying
21x + -6 + -15x + 2 = 18x + -8 + -12x + 16

Reorder the terms:
-6 + 2 + 21x + -15x = 18x + -8 + -12x + 16

Combine like terms: -6 + 2 = -4
-4 + 21x + -15x = 18x + -8 + -12x + 16

Combine like terms: 21x + -15x = 6x
-4 + 6x = 18x + -8 + -12x + 16

Reorder the terms:
-4 + 6x = -8 + 16 + 18x + -12x

Combine like terms: -8 + 16 = 8
-4 + 6x = 8 + 18x + -12x

Combine like terms: 18x + -12x = 6x
-4 + 6x = 8 + 6x

Add '-6x' to each side of the equation.
-4 + 6x + -6x = 8 + 6x + -6x

Combine like terms: 6x + -6x = 0
-4 + 0 = 8 + 6x + -6x
-4 = 8 + 6x + -6x

Combine like terms: 6x + -6x = 0
-4 = 8 + 0
-4 = 8

Solving
-4 = 8

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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