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-252=7(4-5x)
We move all terms to the left:
-252-(7(4-5x))=0
We add all the numbers together, and all the variables
-(7(-5x+4))-252=0
We calculate terms in parentheses: -(7(-5x+4)), so:We get rid of parentheses
7(-5x+4)
We multiply parentheses
-35x+28
Back to the equation:
-(-35x+28)
35x-28-252=0
We add all the numbers together, and all the variables
35x-280=0
We move all terms containing x to the left, all other terms to the right
35x=280
x=280/35
x=8
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