Need help 2007 ADA QR #32

[Bobby Fischer]

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NOTE: I couldn't find an explanation in Chad's vids. Thanks in advance, I wish this forum had the rep feature and I'd give all I could to those who add a response:

2007 ADA #32
If y = (x+2)/(x-3), then which of the following represents x?

A. (3y + 2)/(y - 1)

B. (3y + 2)/👍

C. (3y - 2)/(y + 1)

D. (5y)/(y + 1)

E. (3y - 2)/(y - 1)

 

[theleatherwalle]

Hey alright so this is my advice when ever you get a problem you don't know.

1: write everything down
2: try to work it out on paper. Doing in your head can be difficult

So

y=(x+2)/(x-3)....lts move denominator to the y

y(x-3)=(x+2).... now lets move the x to one side

yx-3y-x=2......lets move that 3y back to the side

yx-x=3y+2.....lets factor out that x

x(y-1)=3y+2.....lets just solve for x

x=(3y+2)/(y-1)....Its A

My other last bit of advice. Plug in numbers and see what you get. It can help you solve complex problems

 

[Bobby Fischer]

Hey alright so this is my advice when ever you get a problem you don't know.

1: write everything down
2: try to work it out on paper. Doing in your head can be difficult

So

y=(x+2)/(x-3)....lts move denominator to the y

y(x-3)=(x+2).... now lets move the x to one side

yx-3y-x=2......lets move that 3y back to the side

yx-x=3y+2.....lets factor out that x

x(y-1)=3y+2.....lets just solve for x

x=(3y+2)/(y-1)....Its A

My other last bit of advice. Plug in numbers and see what you get. It can help you solve complex problems

YES! Worked! how wonderful! Since I can't give you rep on this forum, I hereby dispense good internet & life Karma in your direction!!!🙂👍