7(-c-20)=-13c+20-2c

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Solution for 7(-c-20)=-13c+20-2c equation: 



7(-c-20)=-13c+20-2c

We move all terms to the left:

7(-c-20)-(-13c+20-2c)=0

We add all the numbers together, and all the variables

7(-1c-20)-(-15c+20)=0

We multiply parentheses

-7c-(-15c+20)-140=0

We get rid of parentheses

-7c+15c-20-140=0

We add all the numbers together, and all the variables

8c-160=0

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

8c=160

c=160/8

c=20

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