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5/7d-3/10=4/7d+4
We simplify the equation to the form, which is simple to understand
5/7d-3/10=4/7d+4
We move all terms containing d to the left and all other terms to the right.
+7d-7d=+4 + 0.3
We simplify left and right side of the equation.
d=+4.3
0=4.3
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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