-5n-21=-(5+5n)

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


-5n-21=-(5+5n)

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

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

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

We simplify left and right side of the equation. 
n=+16

0=16

The left and right sides are not equal, therefore there is no solution. This equation is invalid.

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