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15=4(x-7)+1
We move all terms to the left:
15-(4(x-7)+1)=0
We calculate terms in parentheses: -(4(x-7)+1), so:We get rid of parentheses
4(x-7)+1
We multiply parentheses
4x-28+1
We add all the numbers together, and all the variables
4x-27
Back to the equation:
-(4x-27)
-4x+27+15=0
We add all the numbers together, and all the variables
-4x+42=0
We move all terms containing x to the left, all other terms to the right
-4x=-42
x=-42/-4
x=10+1/2
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