21x-9-15x+4=16x-7-10x+15

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Solution for 21x-9-15x+4=16x-7-10x+15 equation:


Simplifying
21x + -9 + -15x + 4 = 16x + -7 + -10x + 15

Reorder the terms:
-9 + 4 + 21x + -15x = 16x + -7 + -10x + 15

Combine like terms: -9 + 4 = -5
-5 + 21x + -15x = 16x + -7 + -10x + 15

Combine like terms: 21x + -15x = 6x
-5 + 6x = 16x + -7 + -10x + 15

Reorder the terms:
-5 + 6x = -7 + 15 + 16x + -10x

Combine like terms: -7 + 15 = 8
-5 + 6x = 8 + 16x + -10x

Combine like terms: 16x + -10x = 6x
-5 + 6x = 8 + 6x

Add '-6x' to each side of the equation.
-5 + 6x + -6x = 8 + 6x + -6x

Combine like terms: 6x + -6x = 0
-5 + 0 = 8 + 6x + -6x
-5 = 8 + 6x + -6x

Combine like terms: 6x + -6x = 0
-5 = 8 + 0
-5 = 8

Solving
-5 = 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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