2x+2y=6 2x-3y=16 Berapakah nilai2x+y​

Jawaban:

8

Penjelasan dengan langkah-langkah:

2x + 2y = 6

2x – 3y = 16

_________ ( – )

5y = -10

y = -10/5

y = -2

Substitusi ke salah satu persamaan :

2x – 3y = 16

2x – 3(-2) = 16

2x – (-6) = 16

2x + 6 = 16

2x = 16 – 6

2x = 10

x = 5

nilai 2x + y

= 2(5) + (-2)

= 10 – 2

= 8