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8(2x)+(3+x)=30
We move all terms to the left:
8(2x)+(3+x)-(30)=0
We add all the numbers together, and all the variables
82x+(x+3)-30=0
We get rid of parentheses
82x+x+3-30=0
We add all the numbers together, and all the variables
83x-27=0
We move all terms containing x to the left, all other terms to the right
83x=27
x=27/83
x=27/83
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