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Simple:
1. Solve the first equation for x (i.e. x = something y + ...)
2. Substitute the right side of that equation for x in the second.
3. Solve this new equation for y.
4. Substitute your value for y into the first and solve for x.
5. As a test, put both values into your second equation.
Oh, you didn't want me to actually *do* the work, did you? :-)
On Tue, 27 May 1997 08:52:54 -0700, you wrote:
>I hope nobody "rolls their eyes" too much on this one...I haven't had to
>use high school algebra since HS, and I'm trying to remember how to
>solve 2 formula, 2 variable equations.
>
>(By the way, this problem is on page 441 of "McMillan On Options" and is
>a formula for determining gamma-delta neutrality, just in case you have
>the book)
>
>0.030x + 0.020y =0 (gamma neutrality)
>0.180x + 0.150y =-10 (Vega risk)
>
>Solve for X and Y
>Show all work
>
>I tried to add the columns like a common addition problem, then letting
>x=1 solve for y, and visa versa....I just didn't come out with the same
>answer <g> Hope somebody still remembers how to do this!
>
>Thanks
Oh, all right. x=222, y=-333
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