Question

tolong di jawab
eliminasi y yah​

Answer 1

Jawaban:

1. Hp = { 4 , -10}

2. Hp = { 1 , -3}

Penjelasan dengan langkah-langkah:

1. 5u + y = 10 X 3

2u + 3y = -22 X 1

______________

15u + 3y = 30

2u + 3y = -22

_____________-

13u = 52

u = 4

5u + y = 10

5(4) + y = 10

20 + y = 10

y = 10 - 20

y = -10

pembuktian :

5u + y = 10

5(4) + (-10) = 10

20 - 10 = 10

Hp = { 4 , -10}

2. u - 4y = 13 X 3

2u + 3y = -7 X 4

_____________

3u - 12y = 39

8u + 12y = -28

_____________+

11u = 11

u = 1

u - 4y = 13

1 - 4y = 13

- 4y = 13-1

- 4y = 12

y = -3

pembuktian :

u - 4y = 13

1 - 4(-3) = 13

1 - (-12) = 13

1 + 12 = 13

Hp = { 1 , -3}