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4(5+3n)-4=-72
We simplify the equation to the form, which is simple to understand
4(5+3n)-4=-72
Reorder the terms in parentheses
+(+20+12n)-4=-72
Remove unnecessary parentheses
+20+12n-4=-72
We move all terms containing n to the left and all other terms to the right.
+12n=-72-20+4
We simplify left and right side of the equation.
+12n=-88
We divide both sides of the equation by 12 to get n.
n=-7.33333333333
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