Question

The difference of two numbers is 18 and the sum is 90. Find the two numbers. Please hurry and include step by step explanation!

Answer 1

Answer: x=54 and y=36

Explanation:

let the two numbers x and y

as the difference of two numbers is 18

x-y=18 eq(1)

sum of two numbers is 90

x+y=90 eq(2)

add eq(1) and eq (2)

x-y+x+y=18+90

2x=108

x=108/2

x=54

subsitute x=54 in eq 1 for y

54-y=18

-y=18-54

y=36

for check

54+36=90

90=90

54-36=18

18=18