There are 165 laptops and desktop computers in a lab. There are 9 more laptops than desktop computers. What is the total number of laptops in the lab?

Question

asked Mar 11, 2021 54.7k views

2 Answers

Skoky · Answer 1 · 2021-03-15T02:03:28+0000

Answer:

87

Explanation:

Let d = number of desktops.

Let a = number of laptops.

a + d = 165

a = d + 9

d = a - 9

a + d = 165

a + a - 9 = 165

2a - 9 = 165

2a = 174

a = 87

Answer: 87