EduSahara™ Assignment
Name : Solution for Complex Pair of Linear Equations
Chapter : Pair of Linear Equations in Two Variables
Grade : CBSE Grade X
License : Non Commercial Use
Question
1
1.
Solve the following pair of equations :
5
x
−
1
y
=
(
−
7
)
−
2
x
−
11
y
=
37
(i)
(
1
,
(
-1
3
)
)
(ii)
(
(
-1
2
)
,
(
-1
3
)
)
(iii)
(
(
-1
2
)
,
1
3
)
(iv)
(
(
-1
2
)
,
(
-1
5
)
)
(v)
(
(
-3
2
)
,
(
-1
3
)
)
Question
2
2.
Solve the following pair of equations :
−
11
x
+
3
y
=
(
−
38
)
−
5
x
+
12
y
=
4
(i)
(
4
,
1
2
)
(ii)
(
6
,
1
2
)
(iii)
(
4
,
1
)
(iv)
(
5
,
1
2
)
(v)
(
4
,
(
-1
2
)
)
Question
3
3.
Solve the following pair of equations :
−
4
x
+
8
y
=
44
−
2
x
−
3
y
=
(
−
27
)
(i)
(
1
5
,
7
)
(ii)
(
1
3
,
5
)
(iii)
(
1
3
,
7
)
(iv)
(
1
,
7
)
(v)
(
1
3
,
6
)
Question
4
4.
Solve the following pair of equations :
5
(
x
+
y
)
+
5
(
x
−
y
)
=
50
−
10
(
x
+
y
)
+
12
(
x
−
y
)
=
(
−
12
)
(i)
(
5
24
,
(
-1
22
)
)
(ii)
(
5
26
,
(
-1
24
)
)
(iii)
(
7
24
,
(
-1
24
)
)
(iv)
(
5
24
,
(
-1
8
)
)
(v)
(
5
24
,
(
-1
24
)
)
Question
5
5.
Solve the following pair of equations :
−
2
(
2
x
+
y
)
+
3
(
2
x
−
y
)
=
(
−
6
)
8
(
2
x
+
y
)
−
1
(
2
x
−
y
)
=
(
−
20
)
(i)
(
(
-7
48
)
,
(
-1
22
)
)
(ii)
(
(
-7
48
)
,
(
-1
8
)
)
(iii)
(
(
-5
48
)
,
(
-1
24
)
)
(iv)
(
(
-7
50
)
,
(
-1
24
)
)
(v)
(
(
-7
48
)
,
(
-1
24
)
)
Question
6
6.
Solve the following pair of equations :
−
7
(
x
+
1
)
−
10
y
=
(
−
23
)
−
6
(
x
+
1
)
+
6
y
=
24
(i)
(
-2
,
-1
)
(ii)
(
-2
,
-3
)
(iii)
(
2
,
1
3
)
(iv)
(
-2
,
1
3
)
(v)
(
1
,
1
3
)
Question
7
7.
Solve the following pair of equations :
(
3
x
+
5
y
)
=
(
−
32
x
y
)
(
4
x
+
3
y
)
=
(
−
28
x
y
)
(i)
(
(
-3
4
)
,
(
-1
4
)
)
(ii)
(
(
-1
4
)
,
(
-1
4
)
)
(iii)
(
(
-1
4
)
,
1
4
)
(iv)
(
(
-1
2
)
,
(
-1
4
)
)
(v)
(
(
-1
4
)
,
(
-1
6
)
)
Question
8
8.
Solve the following pair of equations :
(
17
x
+
9
y
)
x
y
=
21
(
12
x
−
y
)
x
y
=
-44
(i)
(
3
8
,
(
-1
3
)
)
(ii)
(
1
10
,
(
-1
3
)
)
(iii)
(
1
8
,
1
3
)
(iv)
(
1
8
,
(
-1
5
)
)
(v)
(
1
8
,
(
-1
3
)
)
Question
9
9.
Solve the following pair of equations :
−
6
√
x
+
7
√
y
=
55
−
12
√
x
−
8
√
y
=
-44
(i)
(
1
,
(
-1
49
)
)
(ii)
(
1
,
1
49
)
(iii)
(
3
,
1
49
)
(iv)
(
2
,
1
49
)
(v)
(
1
,
1
47
)
Question
10
10.
Solve the following pair of equations :
−
2
x
+
3
y
=
15
−
8
x
+
1
y
=
49
(i)
(
(
-1
6
)
,
-1
)
(ii)
(
(
-1
2
)
,
1
1
)
(iii)
(
(
-1
6
)
,
1
1
)
(iv)
(
(
-1
6
)
,
0
)
(v)
(
(
-1
4
)
,
1
1
)
Question
11
11.
Solve the following pair of equations :
−
15
x
−
3
y
=
78
−
18
x
−
9
y
=
45
(i)
(
-7
,
1
9
)
(ii)
(
-7
,
(
-1
9
)
)
(iii)
(
-6
,
1
9
)
(iv)
(
-4
,
1
9
)
(v)
(
-7
,
1
7
)
Question
12
12.
Solve the following pair of equations :
−
12
x
−
4
y
=
(
−
60
)
−
3
x
+
8
y
=
12
(i)
(
1
4
,
2
)
(ii)
(
1
4
,
3
)
(iii)
(
1
4
,
1
)
(iv)
(
1
6
,
3
)
(v)
(
3
4
,
3
)
Question
13
13.
Solve the following pair of equations :
14
(
x
+
y
)
−
13
(
x
−
y
)
=
(
−
47
)
5
(
x
+
y
)
−
15
(
x
−
y
)
=
35
(i)
(
(
-13
80
)
,
1
80
)
(ii)
(
(
-13
80
)
,
3
80
)
(iii)
(
(
-13
82
)
,
3
80
)
(iv)
(
(
-13
80
)
,
1
26
)
(v)
(
(
-11
80
)
,
3
80
)
Question
14
14.
Solve the following pair of equations :
−
1
(
5
x
+
y
)
−
5
(
5
x
−
y
)
=
11
11
(
5
x
+
y
)
+
2
(
5
x
−
y
)
=
38
(i)
(
(
-1
120
)
,
7
24
)
(ii)
(
(
-1
120
)
,
5
24
)
(iii)
(
(
-1
122
)
,
7
24
)
(iv)
(
(
-1
120
)
,
7
22
)
(v)
(
1
120
,
7
24
)
Question
15
15.
Solve the following pair of equations :
−
4
(
x
−
9
)
+
16
(
y
+
8
)
=
(
−
68
)
−
5
(
x
−
9
)
+
2
(
y
+
8
)
=
(
−
49
)
(i)
(
82
9
,
(
-17
2
)
)
(ii)
(
3
,
(
-17
2
)
)
(iii)
(
1
,
(
-17
2
)
)
(iv)
(
82
9
,
-2
)
(v)
(
82
9
,
-1
)
Question
16
16.
Solve the following pair of equations :
(
−
x
+
8
y
)
=
29
x
y
(
−
6
x
+
3
y
)
=
39
x
y
(i)
(
1
3
,
1
5
)
(ii)
(
1
3
,
(
-1
5
)
)
(iii)
(
1
,
(
-1
5
)
)
(iv)
(
1
3
,
(
-1
7
)
)
(v)
(
1
5
,
(
-1
5
)
)
Question
17
17.
Solve the following pair of equations :
(
10
x
−
3
y
)
x
y
=
-58
(
2
x
+
4
y
)
x
y
=
16
(i)
(
1
8
,
(
-1
4
)
)
(ii)
(
1
2
,
(
-1
4
)
)
(iii)
(
1
6
,
(
-1
4
)
)
(iv)
(
1
6
,
(
-1
6
)
)
(v)
(
1
6
,
1
4
)
Question
18
18.
Solve the following pair of equations :
−
6
√
x
+
4
√
y
=
-40
−
4
√
x
+
8
√
y
=
-16
(i)
(
1
64
,
1
2
)
(ii)
(
1
66
,
1
4
)
(iii)
(
1
64
,
(
-1
4
)
)
(iv)
(
1
64
,
1
4
)
(v)
(
3
64
,
1
4
)
Assignment Key
1) (ii)
2) (i)
3) (iii)
4) (v)
5) (v)
6) (iv)
7) (ii)
8) (v)
9) (ii)
10) (iii)
11) (i)
12) (ii)
13) (ii)
14) (i)
15) (i)
16) (ii)
17) (iii)
18) (iv)