b){x-y+6z=0
x-z=1
3z=3
Soluções para a tarefa
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x - y + 6z = 0
x - z = 1
3z = 3
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3z = 3
z = 3/3
z = 1
x - z = 1
x - 1 = 1
x = 1 + 1
x = 2
x - y + 6z = 0
2 - y + 6.1 = 0
2 - y + 6 = 0
2 + 6 = y
8 = y
y = 8
Resp.: x = 2; y = 8; z = 1
x - z = 1
3z = 3
------------------------------------------
3z = 3
z = 3/3
z = 1
x - z = 1
x - 1 = 1
x = 1 + 1
x = 2
x - y + 6z = 0
2 - y + 6.1 = 0
2 - y + 6 = 0
2 + 6 = y
8 = y
y = 8
Resp.: x = 2; y = 8; z = 1
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