-3(c-7)=-9

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Solution for -3(c-7)=-9 equation: 



-3(c-7)=-9

We move all terms to the left:

-3(c-7)-(-9)=0

We add all the numbers together, and all the variables

-3(c-7)+9=0

We multiply parentheses

-3c+21+9=0

We add all the numbers together, and all the variables

-3c+30=0

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

-3c=-30

c=-30/-3

c=+10

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