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JailsonSales91
@JailsonSales91
December 2019
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Resolva o Sistema:
x + y + z = 3
2x − y + 2z = 5
x + 4y − 5z = 4
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jjzejunio
X + y + z = 3
2x - y + 2z = 5
x + 4y - 5z = 4
=============
x = 3 - y - z
--------------------
2(3 - y - z) - y + 2z = 5
6 - 2y - 2z - y + 2z = 5
-2y - y - 2z + 2z = 5 - 6
-3y + 0z = -1
------------------------------
3 - y - z + 4y - 5z = 4
-y + 4y - z - 5z = 4 - 3
3y - 6z = 1
----------------------
-3y + 0z = -1
3y - 6z = 1
-6z = 0
z = 0/-6
z = 0
3y - 6.0 = 1
3y = 1
y = 1/3
y = 0,3
x = 3 - 0,3 - 0
x = 2,7
1 votes
Thanks 1
JailsonSales91
obrigadão pela ajuda amigo valeu
jjzejunio
De nada, apesar de que não possa te garantir que a resposta esra certa pois cmecei a estudar isso tbm a pouco tempo.
JailsonSales91
tudo bem o que vale é a sua intenção de ajudar
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2x - y + 2z = 5
x + 4y - 5z = 4
=============
x = 3 - y - z
--------------------
2(3 - y - z) - y + 2z = 5
6 - 2y - 2z - y + 2z = 5
-2y - y - 2z + 2z = 5 - 6
-3y + 0z = -1
------------------------------
3 - y - z + 4y - 5z = 4
-y + 4y - z - 5z = 4 - 3
3y - 6z = 1
----------------------
-3y + 0z = -1
3y - 6z = 1
-6z = 0
z = 0/-6
z = 0
3y - 6.0 = 1
3y = 1
y = 1/3
y = 0,3
x = 3 - 0,3 - 0
x = 2,7