Question

Evaluate the expression for b = 7
6b + 8 – 5b

Answer 1

15

Explanation:

6 × 7 = 42

5 × 7 = 35

42 + 8 - 35 = 15

Answer 2

For b = 7, the expression equals 15.

Explanation:

6b + 8 - 5b

Substitute the variable b = 7.

6(7) + 8 - 5(7)

Multiply.

42 + 8 - 35

Add.

50 - 35

Subtract.

15.