Question

What is the value of a in the equation 3 a plus b equals 54, when b equals 9?

15
18
21
27

Answer 1

3a+9=54

54-9=45

45 / 3=15

Answer:15

Answer 2

Answer:

15

Step-by-step explanation:

3a+b=54

3a+9=54

3a=45

a=15