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31=4(2+4x)
We move all terms to the left:
31-(4(2+4x))=0
We add all the numbers together, and all the variables
-(4(4x+2))+31=0
We calculate terms in parentheses: -(4(4x+2)), so:We get rid of parentheses
4(4x+2)
We multiply parentheses
16x+8
Back to the equation:
-(16x+8)
-16x-8+31=0
We add all the numbers together, and all the variables
-16x+23=0
We move all terms containing x to the left, all other terms to the right
-16x=-23
x=-23/-16
x=1+7/16
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