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

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Answer 1 · 2017-06-25T01:10:00

#1=m#

#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#