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-9(x-2)+7x=8
We move all terms to the left:
-9(x-2)+7x-(8)=0
We add all the numbers together, and all the variables
7x-9(x-2)-8=0
We multiply parentheses
7x-9x+18-8=0
We add all the numbers together, and all the variables
-2x+10=0
We move all terms containing x to the left, all other terms to the right
-2x=-10
x=-10/-2
x=+5
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