Question

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[tex]3x - 2y = 1 \\ 2x + y = 4[/tex]
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Answer 1

Verified answer

Penjelasan dengan langkah-langkah:

3x - 2y = 1|×2|6x - 4y = 2

2x + y = 4 |×3|6x + 3y = 12

_________ _

-7y = 14

y = -2

2x + y = 4

2x + -2 = 4

2x = 4 + 2

2x = 8

x = 4

Answer 2

Jawaban:

Hp = {-9, 22}

Penjelasan dengan langkah-langkah:

2x + y = 4

y = 4 - 2x

2y = 2(4 - 2x)

2y = 8 - 4x

3x - 2y = 1

3x - 8 - 4x = 1

3x - 4x = 1 + 8

-x = 9

x = -9

nilai y:

y = 4 - 2x

y = 4 - 2(-9)

y = 4 + 18

y = 22