Question

{x + y + z − 2t = 5
y − z + 3t = 3
2z − t = 4
3t = 6

Answer 1

Resposta:

3t=6

t=6/3

t=2

2z-2=4

2z= 4-2

z= 2/2

z=1

y-1+6=3

y= 3+1-6

y= -2

x+(-2)+1-2(2)=5

x= 5+5

x= 10