6n+21=[-3]-2n

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Solution for 6n+21=[-3]-2n equation:


6n+21=[-3]-2n

We simplify the equation to the form, which is simple to understand 
6n+21=(-3)-2n

Remove unnecessary parentheses
6n+21=-3-2n

We move all terms containing n to the left and all other terms to the right. 
+6n+2n=-3-21

We simplify left and right side of the equation. 
+8n=-24

We divide both sides of the equation by 8 to get n. 
n=-3

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