Question

2x-3y=6
x-y=1
carilah nilai x dan y​

Answer 1

Jawab: x = -3

            y = -4

Penjelasan dengan langkah-langkah:

x = y + 1

2(y + 1) - 3y = 6

2y + 2 - 3y = 6

-y = 4

y = -4

2x -3(-4) = 6

2x + 12 = 6

2x = -6

x = -3