aprilsmoot937 aprilsmoot937
  • 10-12-2019
  • Mathematics
contestada

The second of two numbers is 3 less than twice the first. Their sum is 42. Find the numbers

Respuesta :

aliharini123 aliharini123
  • 10-04-2022

Answer: x = 15, y = 27

Step-by-step explanation:

let number 1 be x
let other number y

therefore, x+y = 42

                y = 2x-3 ----> 2x-y = 3

Solving equations using elimination,

x+y=42

2x-y=3

therefore, 3x = 45

                   x = 15

substituting x in x+y = 42

therefore, x+y=42

15+y=42

y=42-15

y = 27

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