5c-8c=21

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Solution for 5c-8c=21 equation: 


Simplifying
5c + -8c = 21

Combine like terms: 5c + -8c = -3c
-3c = 21

Solving
-3c = 21

Solving for variable 'c'.

Move all terms containing c to the left, all other terms to the right.

Divide each side by '-3'.
c = -7

Simplifying
c = -7

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