The sum of 2 numbers is 24. The difference between the greater number and twice the smaller number is 18. Find the greater number.

Question

I am in algebra 1. I cannot solve this problem. Pleas help

Answer 1

x + y = 24.  Assume x is the greater of these two numbers x & y.

x - 2y = 18   (that's what the second sentence says)

 

Can you solve this system?