-20-5c=-2(6c+9)

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Solution for -20-5c=-2(6c+9) equation: 



-20-5c=-2(6c+9)

We move all terms to the left:

-20-5c-(-2(6c+9))=0



We calculate terms in parentheses: -(-2(6c+9)), so:

-2(6c+9)

We multiply parentheses

-12c-18

Back to the equation:

-(-12c-18)



We get rid of parentheses

-5c+12c+18-20=0

We add all the numbers together, and all the variables

7c-2=0

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

7c=2

c=2/7

c=2/7

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