15=2c-7c

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Solution for 15=2c-7c equation: 



15=2c-7c

We move all terms to the left:

15-(2c-7c)=0

We add all the numbers together, and all the variables

-(-5c)+15=0

We get rid of parentheses

5c+15=0

We move all terms containing c to the left, all other terms to the right

5c=-15

c=-15/5

c=-3

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