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2(m-4)-5m=9-3(2m+7)
We simplify the equation to the form, which is simple to understand
2(m-4)-5m=9-3(2m+7)
Reorder the terms in parentheses
+(+2m-8)-5m=9-3*(2m+7)
Remove unnecessary parentheses
+2m-8-5m=+9-3+*(+2m+7+)
Reorder the terms in parentheses
+2m-8-5m=9+(-6m-21)
Remove unnecessary parentheses
+2m-8-5m=+9-6m-21
We move all terms containing m to the left and all other terms to the right.
+2m-5m+6m=+9-21+8
We simplify left and right side of the equation.
+3m=-4
We divide both sides of the equation by 3 to get m.
m=-1.3333333333333
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