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91=7(g+9)
We move all terms to the left:
91-(7(g+9))=0
We calculate terms in parentheses: -(7(g+9)), so:We get rid of parentheses
7(g+9)
We multiply parentheses
7g+63
Back to the equation:
-(7g+63)
-7g-63+91=0
We add all the numbers together, and all the variables
-7g+28=0
We move all terms containing g to the left, all other terms to the right
-7g=-28
g=-28/-7
g=+4
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