3z + 8y = 3(-2) + 8(1) = -6 + 8 = 2

Penjelasan dengan langkah-langkah:

5x + 2y = -8 × 1 => 5x + 2y = -8

x + 4y = 2 × 5 => 5x + 20y = 10 –

-18y = -18

y = 1

x + 4(1) = 2

x + 4 = 2

x = 2 – 4

x = -2

hp : {-2,1}

3x + 8y = 3(–2) + 8(1) = –6 + 8 = 2