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 2 years ago
on behalf of @jrzyby1
solve the system
x+4yz=3 (1)
x+5y2z=5 (2)
3x+12y3z=9 (3)
 2 years ago
on behalf of @jrzyby1 solve the system x+4yz=3 (1) x+5y2z=5 (2) 3x+12y3z=9 (3)

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lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.0x + 4y  z = 3 x + 5y  2z = 5 subtract the equations 9y + z = 2 < (4)

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.0times the first equation by three, then find the difference with the third equation

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.0(1),(3) are the same

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.0infinite solutions

emcwhat
 2 years ago
Best ResponseYou've already chosen the best response.1Since 1 and 3 are the same, aren't there an infinite number of solutions?

lgbasallote
 2 years ago
Best ResponseYou've already chosen the best response.0hmm yep equation 1 and 3 wont intersect

UnkleRhaukus
 2 years ago
Best ResponseYou've already chosen the best response.0there is an infinite line of solutions

jrzyby1
 2 years ago
Best ResponseYou've already chosen the best response.0I wass't sure and I tried to put the second equation into the first to see if it could be worked, hence the origin of all this. lol

TuringTest
 2 years ago
Best ResponseYou've already chosen the best response.0@jrzyby1 fyi to ask a new question you will have to close your old post (which I think you left open)
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