Question

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Answer 1

Verified answer

Jawaban:

Penyelesaian = {1, -1}

Penjelasan dengan langkah-langkah:

[tex] \dfrac{3x + y + 2}{x - y} = 2[/tex]

3x + y + 2 = 2(x - y)

3x + y + 2 = 2x - 2y

3x - 2x + y - 2y + 2 = 0

x - y + 2 = 0

x - y = 2

y = x - 2

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[tex] \dfrac{x + 2y + 10}{4x + y} = 3[/tex]

x + 2y + 10 = 3(4x + y)

x + 2y + 10 = 12x + 3y

x - 12x + 2y - 3y + 10 = 0

-11x - y + 10 = 0

-11x - y = -10

11x + y = 10

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Nilai x:

11x + x - 2 = 10

12x = 12

x = 12 ÷ 12

x = 1

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Nilai y:

y = x - 2

y = 1 - 2

y = -1

Penyelesaian = {x, y} = {1, -1}