anonymous
  • anonymous
Hey I was just wondering if someone could help with this question 2y+z=3-3x x-3y=4-z -6x-4y=2z+1 Directions are to solve the following system of equations and all answers must be in simplest form.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
where ya stuck on it?
amistre64
  • amistre64
first thing to do is set it up so it looks normal to work with 3x +2y +z = 3 x -3y +z = 4 -6x -4y -2z = 1
anonymous
  • anonymous
Well I first fixed the equations so variables would be on one side The i used the first and second equation to to try and elminate the variables but i ended up elminating all the variables somehow

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More answers

amistre64
  • amistre64
lets kill the xs lol
anonymous
  • anonymous
ok lol
amistre64
  • amistre64
or you wanna do the zs?
amistre64
  • amistre64
zs look precarious, go in for the kill
anonymous
  • anonymous
ok zz it is
anonymous
  • anonymous
you would get -2x-5y=1 if you use the first and third equation
amistre64
  • amistre64
3x +2y +z = 3 -x +3y -z = -4 -------------- 2x +5y = -1 -6x -4y -2z = 1 2x -6y +2z = 8 ---------------- -4x -10y = 9
anonymous
  • anonymous
ok i get that then you do those two together right?
amistre64
  • amistre64
2x +5y = -1 <- death to ys :) -4x -10y = 9 4x +10y = -2 -4x -10y = 9 ---------------- yeah, these lines are parallel to each other lol
amistre64
  • amistre64
there is no solution to the system; it happens :)
amistre64
  • amistre64
same slopes; different points...
anonymous
  • anonymous
ok thank you soo much
anonymous
  • anonymous
I thought there was something wrong when they all canceled
anonymous
  • anonymous
lol
amistre64
  • amistre64
youre welcome :) and quit breaking the math...others have to use it lol
anonymous
  • anonymous
ha ha
anonymous
  • anonymous
I think i can figure the rest out now
anonymous
  • anonymous
thanks again :)
amistre64
  • amistre64
come back now ya hear....we got all the right answers :)
anonymous
  • anonymous
def will it was a big help

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