If the value of b is 7, what is the value of the expression 3b + 2 – 25?

To solve the expression 3b + 2 – 25 when b is equal to 7, we can follow these steps:

1. First, we substitute the value of b into the expression:
2. 3 * 7 + 2 – 25
3. Next, we perform the multiplication:
4. 21 + 2 – 25
5. Now, we add 21 + 2:
6. 23 – 25
7. Finally, we subtract:
8. 23 – 25 = -2

Therefore, the value of the expression when b = 7 is -2.