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2m-5m=9
We simplify the equation to the form, which is simple to understand
2m-5m=9
We move all terms containing m to the left and all other terms to the right.
+2m-5m=+9
We simplify left and right side of the equation.
-3m=+9
We divide both sides of the equation by -3 to get m.
m=-3
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