7+15/21=8

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Solution for 7+15/21=8 equation:


7+15/21=8

We simplify the equation to the form, which is simple to understand 
7+15/21=8

Simplifying:
7 + 0.714285714286=8

We move all terms containing  to the left and all other terms to the right. 
0=+8-7-0.714285714286

We simplify left and right side of the equation. 
0=0.285714285714

0=0.285714285714

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

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