Answer :

naǫ
[tex]-2m+4m+5=-3 \ \ \ |\hbox{substraction 2m from 4m} \\ 2m+5=-3 \ \ \ |\hbox{substraction 5 from both sides}\\ 2m+5-5=-3-5 \\ 2m=-8 \ \ \ |\hbox{division by 2} \\ m=-4[/tex]
AL2006
I haven't done anything yet.
Here's what you could do with it:

-- Combine the  -2m  and the  4m  on the left side.  Together, they make  2m .

Now the equation is:                2m + 5 = -3

Subtract  5  from each side:      2m      = -8

Divide each side by  2 :              m      = -4

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