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22=5x-4(x+7)
We move all terms to the left:
22-(5x-4(x+7))=0
We calculate terms in parentheses: -(5x-4(x+7)), so:We get rid of parentheses
5x-4(x+7)
We multiply parentheses
5x-4x-28
We add all the numbers together, and all the variables
x-28
Back to the equation:
-(x-28)
-x+28+22=0
We add all the numbers together, and all the variables
-1x+50=0
We move all terms containing x to the left, all other terms to the right
-x=-50
x=-50/-1
x=+50
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