Question

Simultaneous equation and surds

5x-3y=41
(7route2)x+(4route2)y=82
Reiny
did you mean
7√2 x + 4√2 y = 82 ?

(that's "root" not "route")

how about multiplying the second equation by √2 ?
that would give you
14x + 8y = 82√2 or
7x + 4y = 41√2

I would then multiply the first equation by 4
and the last version of the second equation by 3,
then add them

take it from there.
Tom
i times them by 4 and 5 as you said and got

20x + 12y = 123
21x + 12y = 246ã2

added together

21x = 123+246ã2

is this right and if so can you help me get the next parts as i have tried but cant figure it out

thanks