Hitunglah: 2x + 3y = 8 x +y =2 Gunakan metode gabungan dan grafik?

2x + 3y = 8
x + y = 2
x = 2 - y
2( 2 - y ) + 3y = 8
4 - 2y + 3y = 8
y = 8 - 4 = 4

x = 2 - 4 = ( -2 )