Question

Matematika (8(SPLDV))​

Answer 1

Penjelasan dengan langkah-langkah:

____________________________

x - 2y = 3

5x - 2y = - 1

- 2y = 3 - x

5x - 2y = - 1

5x + 3 - x = - 1

4x = - 1 - 3

4x = - 4

x = -4/4

x = - 1

- 2y = 3 - x

- 2y = 3 - (- 1)

- 2y = 3 + 1

- 2y = 4

y = 4/-2

y = - 2

x = -1 dan y = -2

Answer 2

Penjelasan dengan langkah-langkah:

x - 2y = 3

5x - 2y = -1

5x + 3 - x = -1

5x - x = - 1 - 3

4x = -4

x = -1

-2y = 3 - x

-2y = 3 - -1

-2y = 3 + 1

-2y = 4

y = -2

maka

jawabannya adalah

x = -1 dan y = -2 opsi a