21+6n=-3(-4n-5)

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Solution for 21+6n=-3(-4n-5) equation:


21+6n=-3(-4n-5)

We simplify the equation to the form, which is simple to understand 
21+6n=-3(-4n-5)

Reorder the terms in parentheses
21+6n=+(+12n+15)

Remove unnecessary parentheses
+21+6n=+12n+15

We move all terms containing n to the left and all other terms to the right. 
+6n-12n=+15-21

We simplify left and right side of the equation. 
-6n=-6

We divide both sides of the equation by -6 to get n. 
n=1

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