-7+20=83

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Solution for -7+20=83 equation:


-7+20=83

We simplify the equation to the form, which is simple to understand 
-7+20=83

We move all terms containing  to the left and all other terms to the right. 
0=+83+7-20

We simplify left and right side of the equation. 
0=+70

0=70

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

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