You can put this solution on YOUR website! Let x = the larger number, y = the other number
:
the sum of 2 integers is 3,
x + y = 3
:
if the larger numbers decrease by 5 times the smaller the result is 21
x - 5y = 21
:
Use elimination here
x + y = 3
x -5y = 21
--------------subtraction eliminates x
6y = -18
y =
y = -3
:
Find x using the 1st equation
x - 3 = 3
x = 3 + 3
x = 6
:
:
Check solution in the 2nd equaton
6 - 5(-3) = 21
6 + 15 = 21
