How do you slove this problem

Question

Subtract 9m-42 from 18m +28=

Answer 1

Hi.

We start by setting the two expressions into an equation:

18m + 28 - 9m - 42 = 0

Next, combine like terms:

9m - 14 = 0

Third, add 14 to both sides:

9m = 14

Finally, solve for m:

m = 14/9 = 1.5556

Let's see if we are right:

18m + 28 -9m - 42 = 0

9m - 14 = 0

9 (1.5556) - 14 = 0

That is true. We did get the correct answer!