21x=21x+12

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Solution for 21x=21x+12 equation: 


Simplifying
21x = 21x + 12

Reorder the terms:
21x = 12 + 21x

Add '-21x' to each side of the equation.
21x + -21x = 12 + 21x + -21x

Combine like terms: 21x + -21x = 0
0 = 12 + 21x + -21x

Combine like terms: 21x + -21x = 0
0 = 12 + 0
0 = 12

Solving
0 = 12

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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