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7 answers

Let x = age of the oldest, y = age of middle and z = age of youngest, then
x + y + z = 32
x = 2z
x - y = 3 (so y = x-3)
Replace x with 2z and y with x - 3
2z + x - 3 + z = 32
Now replace x with 2z
2z + 2z - 3 + z = 32
Combine like terms and solve for z.
4z - 3 + z = 32
5z = 35
z = 7
x = 2(7) = 14
y = 14 - 3 = 11
Answer: 14, 11 and 7

2006-08-26 10:33:45 · answer #1 · answered by MsMath 7 · 1 0

14, 11 and 7

2006-08-26 10:35:40 · answer #2 · answered by Pyramider 3 · 0 0

Youngest= 7
Next Oldest=11
Oldest=14

2006-08-26 10:39:50 · answer #3 · answered by =/ 2 · 0 0

let the children be called a, b, and c

a + b + c = 32

2a = c

c - b = 3

2(a + b + c) = 64
c + 2b + 2c = 64
3c + 2b = 64
3(3+b) + 2b = 64
9+5b = 64
11 = b

c - 11 = 3
c = 14

2a = 14
a =7

therefore the age of the children are 7, 11, and 14

2006-08-26 10:36:48 · answer #4 · answered by Paul W 2 · 0 0

x + y + z = 32
x = 2z

x - y = 3
2z - y = 3
-y = -2z + 3
y = 2z - 3

2z + (2z - 3) + z = 32
2z + 2z - 3 + z = 32
5z - 3 = 32
5z = 35
z = 7

x = 2(7) = 14
y = 14 - 3 = 11
z = 7

The ages are 14, 11, and 7

2006-08-26 12:12:03 · answer #5 · answered by Sherman81 6 · 0 0

x + y + z = 32
x = 2z
x - y = 3

Solve and you get x = 14, y = 11, and z = 7.

2006-08-26 10:37:56 · answer #6 · answered by no clue about cars 1 · 0 0

Why are you asking this nerd.

2006-08-26 10:35:30 · answer #7 · answered by Jonathan 1 · 0 1

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