2

What is the value of a in the equation 5a - 10b = 45, when b = 3?

3

15

21

39

the answer would be 3

Step-by-step explanation:

if you multiply 10*3 it would give you 30 then you would subtract that by 45 so you would have 45-30 which would give you 15 and 5 times 3 would give you 15 so your answer is 3