Question

me ajuda aipfv pra agr ​

Answer 1

Explicação passo a passo:

2x + y - z = 1 >>>>>>>>>>>1

x - y + z = 2 >>>>>>>>>>2

x + 3y - 2z = 3 >>>>>>>>>>3

calculando por adição >>>>>>1 e >>>>>>2

2x + 1y - 1z = 1 >>>>>>>>>1

1x - 1y + 1z = 2 >>>>>>>>>2 ( -2 )

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2x + 1y - 1z = 1>>>>>>>>>>>1

- 2x + 2y - 2z =- 4>>>>>>>>2

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// + 3y - 3z = - 3

3y - 3z = - 3 >>>>>>>>4

calculando>>>>>>>>>>>>>2 e>>>>>>>>>3

1x - 1y + 1z = 2>>>>>>>>>>>>>>>2 ( -1 )

1x + 3y - 2z = 3 >>>>>>>>>>>>>>>>>3

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- 1x + 1y - 1z = -2

1x +3y - 2z = 3

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// 4y - 3z = 1 >>>>>

4y - 3z = 1 >>>>>>>5

calculando >>>>>>4 e >>>>>>5

3y - 3z = -3 >>>>>>>>>>>>4 ( - 1 )

4y - 3z = 1>>>>>>>>>>>>>5

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-3y + 3z = 3

4y - 3z =1

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1y // =4

y= 4/1 = 4 >>>>>>

substituindo y por 4 em >>>>>>>>>>4 acima

3y - 3z = - 3

3 ( 4 ) - 3z =-3

12 - 3z =-3

-3z = - 3 - 12

-3z = -15

3z = 15

z = 15/3 = 5>>>>>>>>>>

em >>>>>>>>2 acima substituir z por 5 e y por 4

x - y + z = 2

x - 4 +5 = 2

x + 1 = 2

x = 2- 1

x = 1 >>>>>>>>resposta