21x-5-18x+2=15x-3-12x+16

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Solution for 21x-5-18x+2=15x-3-12x+16 equation: 


Simplifying
21x + -5 + -18x + 2 = 15x + -3 + -12x + 16

Reorder the terms:
-5 + 2 + 21x + -18x = 15x + -3 + -12x + 16

Combine like terms: -5 + 2 = -3
-3 + 21x + -18x = 15x + -3 + -12x + 16

Combine like terms: 21x + -18x = 3x
-3 + 3x = 15x + -3 + -12x + 16

Reorder the terms:
-3 + 3x = -3 + 16 + 15x + -12x

Combine like terms: -3 + 16 = 13
-3 + 3x = 13 + 15x + -12x

Combine like terms: 15x + -12x = 3x
-3 + 3x = 13 + 3x

Add '-3x' to each side of the equation.
-3 + 3x + -3x = 13 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3 + 0 = 13 + 3x + -3x
-3 = 13 + 3x + -3x

Combine like terms: 3x + -3x = 0
-3 = 13 + 0
-3 = 13

Solving
-3 = 13

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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