15+9/8=-21

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Solution for 15+9/8=-21 equation:


15+9/8=-21

We simplify the equation to the form, which is simple to understand 
15+9/8=-21

Simplifying:
15+1.125=-21

We move all terms containing  to the left and all other terms to the right. 
0=-21-15-1.125

We simplify left and right side of the equation. 
0=-37.125

0=-37.125

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

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