Respuesta :

I'm guessing that it looks like this:

4 · 5 + R = 15

First you multiply 4 and 5

20 + R = 15

Then you subtract 20 on both sides to get "R" by itself

R = -5

ingnore 2nd image first is what you need
Ver imagen KareemMaynard123
Ver imagen KareemMaynard123