Question

Tolong bantu kak, pakai cara. Terima kasih​

Answer 1

x + 3y = 4 ..... × 3

3x + 2y = -2.. ×1

》3x + 9y = 12

》3x + 2y = -2

------------- -

7y = 14

y = 14 ÷ 7 = 2

x + 3y = 4 ; y = 2

x + 3 × 2 = 4

x = 4 - 6 = -2

Hp {-2,2}