4+n=7--n

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Solution for 4+n=7--n equation:


4+n=7--n

We simplify the equation to the form, which is simple to understand 
4+n=7+n

We move all terms containing n to the left and all other terms to the right. 
+1n-1n=+7-4

We simplify left and right side of the equation. 
n=+3

0=3

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

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