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2m+3=-m-3
We simplify the equation to the form, which is simple to understand
2m+3=-m-3
We move all terms containing m to the left and all other terms to the right.
+2m+1m=-3-3
We simplify left and right side of the equation.
+3m=-6
We divide both sides of the equation by 3 to get m.
m=-2
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