Question

{x-6=-9
{2x-6y=-18 me ajudem por favor

Answer 1

Vamos lá

X - 6 = - 9
2X - 6Y = -18

X = –3
2X – 6Y = - 18

2 ( –3 ) - 6Y = –18

–6 – 6Y = –18

–6Y= –18 – 6

–6Y = –12

Y = –12 / –6

Y = 2

S { –3, 2 }