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Hi, i just sat my maths exam, and i had a very strange question.... i dont know how to do it...
x+y=8
x^2-y^2=36
find the values for x and y
Thanks
x+y=8
x^2-y^2=36
find the values for x and y
Thanks
Yup. This is correct. Since you have 2 unknowns, you need 2 equations. And you have already had 2 equations. You can then solve:aricho said:is that it?
i did y^2-x^2=36
(x-y)(x+y)=36
(x-y)(8)=36
x-y=36/8
is any of that correct?
Me or him?HallsofIvy said:Your statement is correct but is not a solution to the "problem" which, I suppose, was to solve the two equations.