13c-9c=20

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Solution for 13c-9c=20 equation: 


Simplifying
13c + -9c = 20

Combine like terms: 13c + -9c = 4c
4c = 20

Solving
4c = 20

Solving for variable 'c'.

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

Divide each side by '4'.
c = 5

Simplifying
c = 5

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