16x-15-9x=13 how do you solve this step by step?

first you move the 15 to the 13 side like this:

16x-9x=13+15

If you move it, the sign always changes.

Then you do calculations.

16x-9x=(16-9)*x=7x

13+15=28

That means:

7x=28

Now you divide 7 from both sides:

x=4

So neatly, this is what it looks like:

16x-9x=13+15

7x=28

x=28/7

x=9

-Isb