-21c+6c=-135

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Solution for -21c+6c=-135 equation: 


Simplifying
-21c + 6c = -135

Combine like terms: -21c + 6c = -15c
-15c = -135

Solving
-15c = -135

Solving for variable 'c'.

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

Divide each side by '-15'.
c = 9

Simplifying
c = 9

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