Question

Assume a*b means a+b-1. what is 5*3

Answer 1

7.

Explanation:

Substitute for a and b in the given identity:

5 * 3 = 5 + 3 - 1

= 8 - 1

= 7.

Answer 2

7

Explanation:

Replace a with 5 and b with 3.

5+3-1=7