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8x-20=4(+)
We move all terms to the left:
8x-20-(4(+))=0
We add all the numbers together, and all the variables
8x-20-(40)=0
We add all the numbers together, and all the variables
8x-60=0
We move all terms containing x to the left, all other terms to the right
8x=60
x=60/8
x=7+1/2
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