Question

Alguém pode me ajudar por favor
A)3X+Y=1 2X-3Y=8 ={(1,-2)}
B)2X-Y=-1 X+Y=4 ={(1,4)}
C)-X+2y=12 X+Y=3 ={(-2,5)}
D)-X-Y=-3 -X+2Y=12 ={(-2,5)}
E)3X-Y-2z=1 X+2Y+Z=9 2X+Y-Z=6 ={(2,3,1)}

Answer 1

A) 2-{3×+y=8

{5. {(1,-2)

B) 2x-y=1

X+y=4

[X,y]=[1,3]

C) x+2y

-12

X+y-3

5-{(-2,5)

D) -x-y=-3

-{(-2,5)}

E) 3x-y-2z=1

X+2y+z=9

2x+y-z=6

[X,y,z]=[2,3,-1]