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(4x+13)+(3x+17)=
We move all terms to the left:
(4x+13)+(3x+17)-()=0
We add all the numbers together, and all the variables
(4x+13)+(3x+17)=0
We get rid of parentheses
4x+3x+13+17=0
We add all the numbers together, and all the variables
7x+30=0
We move all terms containing x to the left, all other terms to the right
7x=-30
x=-30/7
x=-4+2/7
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