21+2n=-6(-2n-2)-1

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Solution for 21+2n=-6(-2n-2)-1 equation:


21+2n=-6(-2n-2)-1

We simplify the equation to the form, which is simple to understand 
21+2n=-6(-2n-2)-1

Reorder the terms in parentheses
21+2n=+(+12n+12)-1

Remove unnecessary parentheses
+21+2n=+12n+12-1

We move all terms containing n to the left and all other terms to the right. 
+2n-12n=+12-1-21

We simplify left and right side of the equation. 
-10n=-10

We divide both sides of the equation by -10 to get n. 
n=1

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