Answer:
b. 3b - 2 = 4
Explanation:
I'm not exactly sure if this the correct way to solve the equation mathematically, but what I did, I just plugged 2 in for all the equations.
a. 2b + 24 = 30
2(2) + 24 = 28
b. 3b - 2 = 4
3(2) - 2 = 4
c. b + 4 = 8
2 + 4 = 6
d. 2b - 3 = 0
2(2) - 3 = 1