Simple Equation?

4 ⤊

Okay, I'm half asleep, here it is:

x=2/(y-1)

how would you make y the subject?

2007-12-04 10:06:27 · 2 answers · asked by Atari 2 in Science & Mathematics ➔ Mathematics

2 answers

x (y - 1) = 2
xy - x = 2
xy = 2 + x
y = (2 + x) / x

2007-12-04 10:10:41 · answer #1 · answered by Como 7 · 4⤊ 0⤋

Ok go

Just, cross multiply the equation

x(y-1) =2

xy - x = 2

xy = 2 + x

........2 + x
y=.-------------
...........x

........2
y=.------+ 1
........x
-----------------Â¦

Now, try your work "y = 2/x +1"

x= 2 / (y-1)
x= 2 / (2/x+1)-1
x= 2 / (2/x)
x(2/x) =2
2 = 2
--------Â¦

Well, hope this helps!
Bye

2007-12-04 20:00:59 · answer #2 · answered by ƒέ 4 · 0⤊ 1⤋