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How do you do this equation?
I never really learned how to do this and we don't have books for our math classes at school -_-
When solving for y when given:
x = (y+5)/(y-3) or something similar to that, how would you go about to find y? I tried doing it by (y)(5/-3) but I realized that wouldn't work. Will someone explain to me how to do it? You don't have to do the problem itself.
2 Answers
- Anonymous1 decade agoFavorite Answer
Multiply both sides by y - 3 to get
x(y - 3) = y + 5
Now multiply out the bracket on the left.
Collect terms involving y on left side and everything else on right side of equals.
Take out y as common factor on left side.
Divide by bracket on left to leave y on its own.
You should end up with y = (3x + 5)/(x - 1)
- 1 decade ago
Original equation: x = (y+5)/(y-3)
Multiply each side by (y-3)
x(y-3) = y+5
Distribute
xy-3x = y+5
Get all y on one side and all x on the other side
xy-y = 3x+5
Factor a y out of the left side
y(x-1) = 3x+5
Divide each side by (x-1)
y=(3x+5)/(x-1)
