The sum of two numbers is 15. if one number is subtracted from the other, the result is -3. find the numbers

Question

asked Dec 22, 2021 175k views

1 Answer

James Leonard · Answer 1 · 2021-12-28T20:14:00+0000

Answer:

The numbers are 6 and 9

Explanation:

Let the two numbers be x and y.

Given :

The sum of two numbers
x+y=15 equation:1

Also the difference of x and y
x-y= -3 equation:2

On solving equation:2

x=y-3 equation:3

Putting this value of x in equation 1.

$x+y=15\\\\(y-3)+y=15\\2y-3=15\\2y=15+3\\2y=18\\y=18/2\\y=9$

Putting value of y in equation:3 to find x

$x=y-3\\x=9-3\\x=6$