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Mathematics
Problem
9. Maximise
Z
=
−
x
+
2
y
\mathrm{Z}=-x+2 y
Z
=
−
x
+
2
y
, subject to the constraints:
x
≥
3
,
x
+
y
≥
5
,
x
+
2
y
≥
6
,
y
≥
0
x \geq 3, x+y \geq 5, x+2 y \geq 6, y \geq 0
x
≥
3
,
x
+
y
≥
5
,
x
+
2
y
≥
6
,
y
≥
0
.
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