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(7x+10)=-77
We move all terms to the left:
(7x+10)-(-77)=0
We add all the numbers together, and all the variables
(7x+10)+77=0
We get rid of parentheses
7x+10+77=0
We add all the numbers together, and all the variables
7x+87=0
We move all terms containing x to the left, all other terms to the right
7x=-87
x=-87/7
x=-12+3/7
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