math help??

1 ⤊

the sum of two numbers is 17 and their difference is 29

2007-05-30 17:26:35 · 3 answers · asked by Mandi M 1 in Science & Mathematics ➔ Mathematics

Let the two numbers equal x and y:
x + y = 17
x - y = 29

2x = 46
x = 23

y = -6

23, -6

2007-05-30 17:30:04 · answer #1 · answered by r 3 · 1⤊ 0⤋

x+y=17
x-y=29

x=17-y
17-2y=29
17-17-2y=29-17

-2y=12 y=-6
x-6=17 x=23

2007-05-31 00:39:29 · answer #2 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋

23 and -6.

SUM: 23 + (-6) = 17

DIFFERENCE: 23 - (-6) = 29

2007-05-31 00:36:12 · answer #3 · answered by ashley d 2 · 0⤊ 0⤋