20=g(-2)

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Solution for 20=g(-2) equation: 



20=g(-2)

We move all terms to the left:

20-(g(-2))=0



We calculate terms in parentheses: -(g(-2)), so:

g(-2)

We multiply parentheses

-2g

Back to the equation:

-(-2g)



We get rid of parentheses

2g+20=0

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

2g=-20

g=-20/2

g=-10

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