6x=6x-21

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Solution for 6x=6x-21 equation: 


Simplifying
6x = 6x + -21

Reorder the terms:
6x = -21 + 6x

Add '-6x' to each side of the equation.
6x + -6x = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
0 = -21 + 6x + -6x

Combine like terms: 6x + -6x = 0
0 = -21 + 0
0 = -21

Solving
0 = -21

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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