-18=-3(g+87)

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Solution for -18=-3(g+87) equation: 



-18=-3(g+87)

We move all terms to the left:

-18-(-3(g+87))=0



We calculate terms in parentheses: -(-3(g+87)), so:

-3(g+87)

We multiply parentheses

-3g-261

Back to the equation:

-(-3g-261)



We get rid of parentheses

3g+261-18=0

We add all the numbers together, and all the variables

3g+243=0

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

3g=-243

g=-243/3

g=-81

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