SOLUTION: Solve the equation for y. Then find the value of y for the given value of x. y-2xy=15; x = -1

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Question 642663: Solve the equation for y. Then find the value of y for the given value of x.
y-2xy=15; x = -1
Answer by ankor@dixie-net.com(22740) About Me  (Show Source):
You can put this solution on YOUR website!
Solve the equation for y. Then find the value of y for the given value of x.
y - 2xy = 15;
Factor out y on the left side
y(1 - 2x) = 15
divide both sides by (1-2x)
y = 15%2F%28%281-2x%29%29
:
Then find the value of y for the given value of x. x = -1
y = 15%2F%281-2%28-1%29%29 = 15%2F%281%2B2%29 = 15%2F3
y = 5
:
:
Check this out, y - 2xy = 15
replace x with -1, and y with 5
5 - 2(-2*5)= 15
5 -2(-10) = 15
5 + 10 = 15, confirms our solution of y=5