I am studying to take my nursing school entrance exam. Here is one of the problems that I can't figure out. I take the test Thursday. If anyone can show me how to do this, I would be thankful.
Here is the problem The answer choices are under the problem.
If y(x-1)=z then x=
y-z
z/y + 1
y(z-1)
z(y-1)
1-zy
2007-09-17 01:59:32 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
z/y+1 is the answer
y*(x-1) = z
Divide both sides of the = sign by y
y*(x-1)/y = z/y
(x-1) = z/y
You can drop the () now, they are not needed for grouping
x-1 = z/y
Add 1 to both sides
x-1+1 = z/y +1
x = z/y + 1
2007-09-17 02:14:10 · answer #1 · answered by ? 5 · 0⤊ 0⤋
y(x-1)=z
(x-1)=z/y
x =z/y +1
2007-09-17 02:10:30 · answer #2 · answered by Anonymous · 0⤊ 0⤋
x-1 = z divided by y
x = (z divided by y) + 1
2007-09-17 02:07:52 · answer #3 · answered by Man of Ideas 5 · 0⤊ 0⤋
y(x-1)=z; divide by y to isolate x
(x-1)=z/y; remove ()
x-1=z/y; add one to each side
x=z/y+1
2007-09-17 02:15:05 · answer #4 · answered by Anonymous · 0⤊ 0⤋
x = (z/y) + 1
Doug
2007-09-17 02:03:34 · answer #5 · answered by doug_donaghue 7 · 0⤊ 0⤋