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5(n-3)+4n=-87
We simplify the equation to the form, which is simple to understand
5(n-3)+4n=-87
Reorder the terms in parentheses
+(+5n-15)+4n=-87
Remove unnecessary parentheses
+5n-15+4n=-87
We move all terms containing n to the left and all other terms to the right.
+5n+4n=-87+15
We simplify left and right side of the equation.
+9n=-72
We divide both sides of the equation by 9 to get n.
n=-8
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