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3 years ago

Help solve this picture

Mathematics

1 answer:

blagie [28]3 years ago

6 0

X + y - z = 9
3x - y + z = -13
____________(+)___
4x = -4 => x = -1 => y - z = 10;
But, x - 2y + 4z = -1 => -2y + 4z = 0 => -y + 2z = 0;

y - z = 10
-y + 2z = 0
_________(+)__
/ z = 10 => y = 20 .

A. There is one solution. The solution is ( - 1, 20, 10 ).

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Answer:

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Step-by-step explanation:

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Required

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2 years ago

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elena55 [62]

Answer:

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Answer:

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