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0.25x+7x=4(x-13)
We move all terms to the left:
0.25x+7x-(4(x-13))=0
We add all the numbers together, and all the variables
7.25x-(4(x-13))=0
We calculate terms in parentheses: -(4(x-13)), so:We get rid of parentheses
4(x-13)
We multiply parentheses
4x-52
Back to the equation:
-(4x-52)
7.25x-4x+52=0
We add all the numbers together, and all the variables
3.25x+52=0
We move all terms containing x to the left, all other terms to the right
3.25x=-52
x=-52/3.25
x=-16
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