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12m+5-m+18+3m=0
We simplify the equation to the form, which is simple to understand
12m+5-m+18+3m=0
We move all terms containing m to the left and all other terms to the right.
+12m-1m+3m=0-5-18
We simplify left and right side of the equation.
+14m=-23
We divide both sides of the equation by 14 to get m.
m=-1.64285714286
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