Question 1179541:
The sum of three numbers is 87 . The second number is 2 times the third. The first number is 9 less than the third. What are the numbers? Answer by mananth(16946) (Show Source):
You can put this solution on YOUR website! The sum of three numbers is 87 .
let the numbers be x,y,z
x+y+z=87 ---------------------------(1)
The second number is 2 times the third.
y=2z
The first number is 9 less than the third.
x = z-9
substitute y & z in (1)
z-9 +2z +z =87
4z-9 = 87
4z = 96
z= 24
knowing z you can find x & y
the numbers
