How do you solve #3m + 8 = 7m + 14#?

2 Answers

The answer is #m = -3/2#.

Explanation:

You have to start by getting all the variables on one side, either side will work. I personally put them on the left side. To do that, you have to use the inverse operations.

#3m+8=7m+14#

So, you have to subtract #7m# from both sides and subtract #8# from both sides, so now you should have

#-4m = 6.#

Now you have to divide by #-4# on both sides, this should leave you with

#m = 6/-4#

But we can simplify and get

#m = 3/-2#

And you can move the negative sign to the 3 if you wish so it becomes #-3/2#, as long as both of them aren’t negative.

Hope this helped!

Apr 24, 2018

#m=-3/2#

Explanation:

First, I'll switch the sides. No math yet. We have:

#7m+14=3m+8#

We can subtract #3m# from both sides to get:

#4m+14=8#

Our next step would be to subtract #14# from both sides. Notice, we're subtracting the constants from the constants, and the variables from the variables. We get:

#4m=-6#

Our last step would be to divide both sides by #4# to get:

#m=-3/2#