What is 3a plus 2b?

3a + 2b is an expression in algebra. If you make 3a + 2b equal to something then you can find the values of "a" and "b"

Lets say you make 3a + 2b equal to 23

3a + 2b = 23

Now find "a" and "b" to make this equation true...

3(5) + 2(4) = 23

15 + 8 = 23

23 = 23 Correct

So in this case a=5 and b=4