The sum of two numbers is 90. The larger
number is 14 more than 3 times the smaller
number. Find the numbers.
First complete the equations below, where x stands for
the larger number and y stands for the smaller number.
x + y = [?]; x = + ly

Respuesta :

Step-by-step explanation:

Let the larger number be x and smaller number be y.

โ†’ Sum of two numbers = 90

โ†’ x + y = 90_(1)

Also,

โ†’ Larger number = 14 + 3(Smaller number)

โ†’ x = 14 + 3y_(2)

Substitute the value of x from equation (2) to (1) :

โ†’ x + y = 90

โ†’ 14 + 3y + y = 90

โ†’ 14 + 4y = 90

โ†’ 4y = 90 - 14

โ†’ 4y = 76

โ†’ y = 76 รท 4

โ†’ y = 19

And, from the equation (2) ;

โ†’ x = 14 + 3y

โ†’ x = 14 + 3(19)

โ†’ x = 14 + 57

โ†’ x = 71

Therefore, larger number is 71 and smaller number is 19.