-42=5(2c+9)-3(c-8)

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Solution for -42=5(2c+9)-3(c-8) equation: 



-42=5(2c+9)-3(c-8)

We move all terms to the left:

-42-(5(2c+9)-3(c-8))=0



We calculate terms in parentheses: -(5(2c+9)-3(c-8)), so:

5(2c+9)-3(c-8)

We multiply parentheses

10c-3c+45+24

We add all the numbers together, and all the variables

7c+69

Back to the equation:

-(7c+69)



We get rid of parentheses

-7c-69-42=0

We add all the numbers together, and all the variables

-7c-111=0

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

-7c=111

c=111/-7

c=-15+6/7

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