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(2n+5)-3(3n+1)=-21
We simplify the equation to the form, which is simple to understand
(2n+5)-3(3n+1)=-21
Remove unnecessary parentheses
2n+5-3*(3n+1)=-21
Reorder the terms in parentheses
2n+5+(-9n-3)=-21
Remove unnecessary parentheses
+2n+5-9n-3=-21
We move all terms containing n to the left and all other terms to the right.
+2n-9n=-21-5+3
We simplify left and right side of the equation.
-7n=-23
We divide both sides of the equation by -7 to get n.
n=3.28571428571
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