80-y+y+40=720

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Solution for 80-y+y+40=720 equation:


80-y+y+40=720

We simplify the equation to the form, which is simple to understand 
80-y+y+40=720

We move all terms containing y to the left and all other terms to the right. 
-1y+1y=+720-80-40

We simplify left and right side of the equation. 
y=+600

0=600

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

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