Question

alguém urgenteeeeeeeeee pfv​

Answer 1

X = 8 - 2Y

3 (8 - 2Y) - Y = - 11

24 - 6 Y - Y = - 11

24 - 7 Y = - 11

35 - 7 Y = 0

7 Y = 35

Y = 35/7

Y= 5