20=-10(g+77)

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Solution for 20=-10(g+77) equation: 



20=-10(g+77)

We move all terms to the left:

20-(-10(g+77))=0



We calculate terms in parentheses: -(-10(g+77)), so:

-10(g+77)

We multiply parentheses

-10g-770

Back to the equation:

-(-10g-770)



We get rid of parentheses

10g+770+20=0

We add all the numbers together, and all the variables

10g+790=0

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

10g=-790

g=-790/10

g=-79

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