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a/a-9=3/10
We simplify the equation to the form, which is simple to understand
a/a-9=3/10
We move all terms containing a to the left and all other terms to the right.
0=0.3-1+9
We simplify left and right side of the equation.
0=+8.3
0=8.3
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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