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12=8+5x
We move all terms to the left:
12-(8+5x)=0
We add all the numbers together, and all the variables
-(5x+8)+12=0
We get rid of parentheses
-5x-8+12=0
We add all the numbers together, and all the variables
-5x+4=0
We move all terms containing x to the left, all other terms to the right
-5x=-4
x=-4/-5
x=4/5
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