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9-7/-1=-2
We simplify the equation to the form, which is simple to understand
9-7/-1=-2
Simplifying:
9-7=-2
We move all terms containing to the left and all other terms to the right.
0=-2-9+7
We simplify left and right side of the equation.
0=-4
0=-4
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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