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7(1x+2)=-91
We move all terms to the left:
7(1x+2)-(-91)=0
We add all the numbers together, and all the variables
7(x+2)-(-91)=0
We add all the numbers together, and all the variables
7(x+2)+91=0
We multiply parentheses
7x+14+91=0
We add all the numbers together, and all the variables
7x+105=0
We move all terms containing x to the left, all other terms to the right
7x=-105
x=-105/7
x=-15
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