Question

sistema linear pff
x + y + 2z = 9
x + 2y + z = 8
2x + y + z = 7

Answer 1

Resposta:

x+y+2z=9

x=9-y-2z,y ER, zER

x+2z+z=8

x+2y=6

2x+y+z=7

X=7 - 1 y - 1 z

2 2 2

X=7 - 1 y- 1,y ER, z ER

2 2 2