Question

3 a plus b equals 54, when b equals 9?

Answer 1

15

Explanation:

3 a + b = 54

Given that b=9

We substitute b as 9 into the equation; 3 a + 9 = 54

3 a = 54 - 9

3 a = 45

Then, divide each side by 3 to get the value of a; 3 a /3 = 45 / 3

a = 45 / 3

a = 15

Answer 2

3a+b= 54

3a+9=54

3a=54-9

3a=45

a=45/3

a= 15