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-4(n-15)=-4
We move all terms to the left:
-4(n-15)-(-4)=0
We add all the numbers together, and all the variables
-4(n-15)+4=0
We multiply parentheses
-4n+60+4=0
We add all the numbers together, and all the variables
-4n+64=0
We move all terms containing n to the left, all other terms to the right
-4n=-64
n=-64/-4
n=+16
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