How do you solve 16- 2m = 5m + 9?

1 Answer
Jun 25, 2017

1=m

Explanation:

16- 2m = 5m + 9

To begin you pick a side that you want to work with usually you want to work with a positive variable m.

So we begin by adding 2m to both sides:

16cancel(-2m+2m) = 5m+2m + 9

We now have:

16=7m+9

Now we subtract 9 from both sides:

16-9=7mcancel(+9-9)

7=7m

We divide both sides by 7:

7/7=cancel(7m)/cancel7

So our answer is:

1=m