21+5n=2(7n-3)

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Solution for 21+5n=2(7n-3) equation:


21+5n=2(7n-3)

We simplify the equation to the form, which is simple to understand 
21+5n=2(7n-3)

Reorder the terms in parentheses
21+5n=+(+14n-6)

Remove unnecessary parentheses
+21+5n=+14n-6

We move all terms containing n to the left and all other terms to the right. 
+5n-14n=-6-21

We simplify left and right side of the equation. 
-9n=-27

We divide both sides of the equation by -9 to get n. 
n=3

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