2006-07-09 17:55:37 · 16 answers · asked by justine d 2 in Entertainment & Music ➔ Jokes & Riddles
x+y=5..................(1
x-y=2
x=2+y....................(2
subsitiute (2 into (1
(2+y)+y=5
2y+2=5
2y=3
y=1.5
substitute y=1.5 into either (1 or (2
x=2+y
x=2+1.5
x=3.5
2006-07-09 17:59:31 · answer #1 · answered by jonathantam1988 2 · 2⤊ 0⤋
I agree with hardez... you sub x=y+2 (from the second equation) to the first equation and you get (y+2)+y=5, which simplifies to y=3/2 or 1.5. Then sub y=1.5 to the either equation and you get x=3.5. Hardez was quick...
2006-07-10 01:01:49 · answer #2 · answered by Dreamer363 4 · 0⤊ 0⤋
x+y=5 so x=5-y
x-y=2
then x-y=2 so x+y=5
(5-y)-y=2 x=5-y
5-2y=2 x=5-1.5
-2y=2-5 x= 3.5
-2y=-3
y=1.5
answer x=3.5 y=1.5
check:
x+y=5 3.5+1.5=5
x-y=2 3.5-1.5=2
2006-07-10 01:03:27 · answer #3 · answered by judy 3 · 0⤊ 0⤋
y=3 and x=2 , i think
2006-07-10 00:59:51 · answer #4 · answered by Manoo 2 · 0⤊ 0⤋
x=6.5
y=3/2
x+ y= 5
-(x)-(-y)=-(2)
so
0+2y=3
2y/2=3/2
y=3/2
so
x+3/2=5
x=5-(3/2)
x=6.5
^used the calc
2006-07-10 01:00:47 · answer #5 · answered by hectortuba 3 · 0⤊ 0⤋
at least 2 points.
2006-07-10 07:17:52 · answer #6 · answered by police 6 · 0⤊ 0⤋
x is the 24th & y is the 25th alphabet in English language. Smarty pants!!!
2006-07-10 03:25:21 · answer #7 · answered by lusktuffar 3 · 0⤊ 0⤋
When the he!! did they start puttin' letters in math??
Numbers is math, letters is words.
2006-07-10 01:11:01 · answer #8 · answered by Ruthie1959 6 · 0⤊ 0⤋
Who cares?
X and Y are letters.
2006-07-10 00:58:05 · answer #9 · answered by babybone1991 3 · 0⤊ 0⤋
xy issss male
2006-07-10 00:58:51 · answer #10 · answered by Chris=Guitar 2 · 0⤊ 0⤋