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13m-13m+2+2=18
We simplify the equation to the form, which is simple to understand
13m-13m+2+2=18
We move all terms containing m to the left and all other terms to the right.
+13m-13m=+18-2-2
We simplify left and right side of the equation.
m=+14
0=14
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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