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.333333333+.666666667m=.666666667m-.666666667
We simplify the equation to the form, which is simple to understand
.333333333+.666666667m=.666666667m-.666666667
We move all terms containing m to the left and all other terms to the right.
+ 0.666666667m-0.666666667m=-0.666666667-0.333333333
We simplify left and right side of the equation.
m=-1
0=-1
The left and right sides are not equal, therefore there is no solution. This equation is invalid.
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