Question

The sum of two numbers is 50. One number is 10 less than three times the other number. What are the two numbers? 25 and 25 45 and 5 15 and 35 40 and 10 20 and 30

Answer 1

One number is x
other number is 3x-10

x + 3x - 10 = 50
4x = 50 + 10
4x = 60
x = 60/4
x = 15   ← one number

 the other number = 3x - 10 = 3*15 - 10 = 35