-20+20=-20

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Solution for -20+20=-20 equation:


-20+20=-20

We simplify the equation to the form, which is simple to understand 
-20+20=-20

We move all terms containing  to the left and all other terms to the right. 
0=-20+20-20

We simplify left and right side of the equation. 
0=-20

0=-20

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

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