plexusgirl84
26.02.2021 •
Mathematics
Solve the system by substitution.
⎧
⎪
⎨
⎪
⎩
−
x
−
y
−
z
=
−
8
−
4
x
+
4
y
+
5
z
=
7
2
x
+
2
z
=
4
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Ответ:
4
Step-by-step explanation:
4