## Algebra: A Combined Approach (4th Edition)

Sum of the number and 5: $z+5$ Reciprocal of the sum of the number and 5: $\frac{1}{z+5}$
Part 1: Since the number is z, the sum of the number and 5 means that the required expression is $z+5$ Part 2: The reciprocal of the sum of the number and 5 means that we need to take the reciprocal of the expression in part 1. Therefore, the required expression is $\frac{1}{z+5}$