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Tju [1.3M]
3 years ago
8

PLEASE HELP-

Mathematics
1 answer:
salantis [7]3 years ago
5 0

Answer:

1 3/4 simplified or 1 12/16 not simplified

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PLEASE HELP ASAP 25 PTS + BRAINLIEST TO RIGHT/BEST ANSWER
mash [69]

Answer:

(-6,9,-3)

Step-by-step explanation:

-3x -y +z=6

-3x-y+3z =0

x-3z =3

Multiply the second equation by -1

-1 *(-3x-y+3z) =0*-1

3x +y -3z =0

Add this to the first equation

-3x -y +z=6

3x +y -3z =0

----------------------

0 + 0 + -2z = 6

Divide by -2

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z = 6/-2

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Take the third equation to find x

x-3z=3

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Subtract 9 from each side

x+9-9 =3-9

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Now we need to find y

3x +y -3z =0

3(-6) +y -3(-3) =0

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-9+y =0

Add 9 to each side

-9+9+y = 0+9

y=9

(-6,9,-3)

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