2X +5X− =1 7 X −1(U= X− ≥1 0;V= X + + >X 1 0);10 / 2(X − + =3X...
9 / 2
x
+
5
x
− =
1 7
x
−
1(
u
=
x
− ≥
1 0;
v
=
x
+ + >
x
1 0);10 / 2(
x
− + =
3
x
2) 3
x
+
8;11/ 2(
x
+ =
2) 5
x
+
1
+
−
+
−
4
1
3
20
20
2
2
x
x
x
x
−
=
−
=
+
=
9 / 2
x
+
5
x
− =
1 7
x
−
1(
u
=
x
− ≥
1 0;
v
=
x
+ + >
x
1 0);10 / 2(
x
− + =
3
x
2) 3
x
+
8;11/ 2(
x
+ =
2) 5
x
+
1
+
−
+
−
4
1
3
20
20
2
2
x
x
x
x
−
=
−
=
+
=