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-1/5=9-10/12-7
We simplify the equation to the form, which is simple to understand
-1/5=9-10/12-7
Simplifying:
-0.2=9-10/12-7
Simplifying:
-0.2=9-0.833333333333-7
We move all terms containing to the left and all other terms to the right.
0=+9-0.833333333333-7 + 0.2
We simplify left and right side of the equation.
0=+1.36666666667
0=1.36666666667
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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