Question

resolva os sistemas e os clasifique x+y+z=0 y-2=5 2z=3

Answer 1

y-2=5
y=5+2
{y=7}
2z=3
{z=3/2}
x+y+z=0
x+7+3/2=0
x+14+3/2=0
x+17/2=0
{x=-17/2}
-17/2+7+3/2=0
-17+14/2+3/2=0
-3/2+3/2=0
0=0