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23=7+8x
We move all terms to the left:
23-(7+8x)=0
We add all the numbers together, and all the variables
-(8x+7)+23=0
We get rid of parentheses
-8x-7+23=0
We add all the numbers together, and all the variables
-8x+16=0
We move all terms containing x to the left, all other terms to the right
-8x=-16
x=-16/-8
x=+2
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