Question

The sum of two consecutive numbers is 157. This equation, where n is the first number, represents the situation:

2n + 1 = 157.

What is the first number?

Answer 1

the answer is B.78

Explanation:

2n + 1 = 157

2n = 157 - 1

2n = 156

n = 156/2

n = 78

Answer 2

Explanation:

2n + 1 = 157

2n = 157 - 1

2n = 156

n = 156/2

n = 78