anonymous
  • anonymous
Solve using linear combination. x – y = –7 x + y = 7 (–7, 0) (7, 0) (0, 7) (0, –7)
Mathematics
jamiebookeater
  • jamiebookeater
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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.

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pooja195
  • pooja195
elimination basically opposites cancel so what 2 variables can we get rid of right away?
pooja195
  • pooja195
Any ideas?
anonymous
  • anonymous
subtract 'y'?

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pooja195
  • pooja195
yep so we have 2x=0 and you get x=0
pooja195
  • pooja195
(0) – y = –7
pooja195
  • pooja195
0-y= -7
pooja195
  • pooja195
Solve.
anonymous
  • anonymous
So it would be 'D'? i think.
pooja195
  • pooja195
no quite remeber a negative divded by a negative is positive to -7/-y=?
anonymous
  • anonymous
Oh! so positive 7 then.
pooja195
  • pooja195
yes :)
anonymous
  • anonymous
Would the 0 still be before the 7? (0,7) or (7,0)
pooja195
  • pooja195
yes
pooja195
  • pooja195
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anonymous
  • anonymous
Thank you :)
pooja195
  • pooja195
:)

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