monkey*
  • monkey*
X-y+z=5 -2x-y-z=-6 3x+3y-2z=-5 Solve algebraically.
Mathematics
  • Stacey Warren - Expert brainly.com
Hey! We 've verified this expert answer for you, click below to unlock the details :)
SOLVED
At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.
jamiebookeater
  • jamiebookeater
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
texaschic101
  • texaschic101
ohhhh...these are a pain in the butt. Very time consuming. here we go... x - y + z = 5 ----- multiply by -1 -2x - y - z = -6 -------------- -x + y - z = -5 (result of multiplying by -1) -2x - y - z = -6 --------------add -3x - 2z = - 11 x - y + z = 5 ---- multiply by 3 3x + 3y - 2z = -5 ---------------- 3x - 3y + 3z = 15 (result of multiplying by 3) 3x + 3y - 2z = -5 ---------------add 6x + z = 10 -3x - 2z = -11 6x + z = 10 ---- multiply by 2 --------------- -3x - 2z = -11 12x + 2z = 20 (result of multiplying by 2) --------------add 9x = 9 x = 1 6x + z = 10 6(1) + z = 10 6 + z = 10 z = 10 - 6 z = 4 x - y + z = 5 1 - y + 4 = 5 5 - y = 5 -y = 0 y = 0 check... -2x - y - z = -6 -2(1) - 0 - 4 = -6 -2 - 4 = -6 -6 = -6 (correct) so x = 1, y = 0, and z = 4
texaschic101
  • texaschic101
It would probably be easier to use matrices....I am just not too good with those
monkey*
  • monkey*
I was extremely confused, thank you so much for clearing it up for me. This is a huge help. Thank you so much! I'm not too great at matrices, either.

Looking for something else?

Not the answer you are looking for? Search for more explanations.