Question 661938
1/2b + 1/2(6) = 3/2b - 1
1/2b + 3 - 1/2b + 1 = 3/2b - 1/2b - 1 + 1
Combine like terms
4 = 2/2b
4 = b

Proof
1/2(4) + 1/2(6) = 3/2(4) - 1
2 + 3 = 5
6 - 1 = 5