-3(n+12)+7n+20=5n-21+13-3n

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Solution for -3(n+12)+7n+20=5n-21+13-3n equation:


-3(n+12) + 7n + 20= 5n - 21+ 13-3n

We simplify the equation to the form, which is simple to understand 
-3(n+12)+7n+20=5n-21+13-3n

Reorder the terms in parentheses
+(-3n-36)+7n+20=5n-21+13-3n

Remove unnecessary parentheses
-3n-36+7n+20=+5n-21+13-3n

We move all terms containing n to the left and all other terms to the right. 
-3n+7n-5n+3n=-21+13+36-20

We simplify left and right side of the equation. 
+2n=+8

We divide both sides of the equation by 2 to get n. 
n=4

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