plz help what does x equal????
2006-10-30 10:47:22 · 10 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
I assume you mean "wjat does y equal?"
7+2/3y=1/6y-5
7+5=(1/6-2/3)y
12=(1/6-4/6)y
12=-1/2 y
y=-24
2006-10-30 10:50:27 · answer #1 · answered by yupchagee 7 · 17⤊ 0⤋
7 + (2/3)y = (1/6)y - 5
You can multiply everything by 6 to get rid of the fractions.
6(7) + 6(2/3)y = 6(1/6)y - 6(5)
42 + 4y = y - 30
Subtract y from each side and subtract 42 from each side
3y = -72
Divide both sides by 3
y = -72/3
y = -24
2006-10-30 18:54:29 · answer #2 · answered by MsMath 7 · 0⤊ 0⤋
Yes, yupchagee got it. If you put in any more of these I suggest you use parentheses
7 + (2/3)y = (1/6)y - 5
to make it clear that y is not part of the denominator. On first looking I thought it was 2/(3y)
And now I see mom thought the same thing, and answered accordingly!!
2006-10-30 18:54:00 · answer #3 · answered by Hy 7 · 0⤊ 0⤋
The way it is written I assume the y is in the denominator of each fraction.
multiple each term by the LCD, which is 6y
42y + 4 = 1 - 30Y
add 30 y to both sides
72y +4=1
subtract 4 from both sides
72y= -3
divide by 72
y=-3/72
y=-1/24
2006-10-30 18:53:47 · answer #4 · answered by mom 7 · 1⤊ 0⤋
If u mean Y then
6y(7+2/3y=1/6y-5) * by common denominator
=(42y+4=1-30y) - simplify
=72y=-3
y= -3/72
*edit* shoot mom got it b4 me >:(
2006-10-30 18:55:46 · answer #5 · answered by eugene w 1 · 0⤊ 0⤋
7 + 2/3x = 1/6x - 5...............*x
7x + 2/3 = 1/6 - 5x
12 x = -1/2
x = -1/24
An Other solution
7 + 5 = (1/6 - 4/6)(1/y)
12 = -1/2y
y = -1/24
2006-10-30 19:03:07 · answer #6 · answered by M. Abuhelwa 5 · 0⤊ 0⤋
1/2 y = -12
y = -24
2006-10-30 18:52:30 · answer #7 · answered by MollyMAM 6 · 0⤊ 0⤋
-24
2006-10-30 18:56:02 · answer #8 · answered by Ms. T 1 · 0⤊ 0⤋
x = whatever you want.
3/6y=-12 , is that better?
2006-10-30 18:52:12 · answer #9 · answered by Anonymous · 0⤊ 0⤋
does not compute
2006-10-30 18:49:59 · answer #10 · answered by Anonymous · 0⤊ 1⤋