Question

What is the value of a in the equation 3a + b = 54, when b = 9?

Answer 1

First, we plug in 9:

3a + b = 54

3a + 9 = 54

Now we have to get rid of '9' so we subtract it to both sides, what do you get?

Answer 2

45

Answer 3

Yes, so we have:

3a = 45

Now divide 3 to both sides.

Answer 4

i got 15 lol

Answer 5

Yes, that's correct.