3(7c-4)=21c-12

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Solution for 3(7c-4)=21c-12 equation: 


Simplifying
3(7c + -4) = 21c + -12

Reorder the terms:
3(-4 + 7c) = 21c + -12
(-4 * 3 + 7c * 3) = 21c + -12
(-12 + 21c) = 21c + -12

Reorder the terms:
-12 + 21c = -12 + 21c

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

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

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

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

Combine like terms: 21c + -21c = 0
0 = 21c + -21c

Combine like terms: 21c + -21c = 0
0 = 0

Solving
0 = 0

Couldn't find a variable to solve for.

This equation is an identity, all real numbers are solutions.

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