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-4(-n+12)=28
We simplify the equation to the form, which is simple to understand
-4(-n+12)=28
Reorder the terms in parentheses
+(+4n-48)=28
Remove unnecessary parentheses
+4n-48=+28
We move all terms containing n to the left and all other terms to the right.
+4n=+28+48
We simplify left and right side of the equation.
+4n=+76
We divide both sides of the equation by 4 to get n.
n=19
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