Define the variables, and write a system of equations to find the number of issues of each magazine.

Question

 Jo received 24 issues this year. The number of fashion issues is 6 less than twice the number of sports issues. Define the variables, and write a system of equations to find the number of issues of each magazine.

Answer 1

f = number of fashion issues

s = number of sports issues

 

f + s = 24

f = 2s - 6

 

In first equation replace f with 2s-6 and solve for s:

2s - 6 + s = 24

3s - 6 = 24

 

Finish solving for s to find number of sports issues, then

use f = 2s-6 or just 24-s to find f.