21-5n=-7(8n-3)

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Solution for 21-5n=-7(8n-3) equation:


21 - 5n = -7 ( 8n - 3 ) 

We simplify the equation to the form, which is simple to understand 
21-5n=-7(8n-3)

Reorder the terms in parentheses
21-5n=+(-56n+21)

Remove unnecessary parentheses
+21-5n=-56n+21

We move all terms containing n to the left and all other terms to the right. 
-5n+56n=+21-21

We simplify left and right side of the equation. 
+51n=0

We divide both sides of the equation by 51 to get n. 
n=0

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