EduSahara™ Assignment
Name : Simultaneous Equations
Chapter : Linear Equations and Simultaneous Linear Equations
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
Solve
(
16
x
−
y
−
40
)
=
0
(
x
−
5
y
−
42
)
=
0
(i)
(
2
,
-8
)
(ii)
(
5
,
-8
)
(iii)
(
3
,
-8
)
(iv)
(
2
,
-9
)
(v)
(
2
,
-10
)
Question
2
2.
Solve
(
−
4
x
−
y
+
1
)
=
0
(
−
x
+
4
y
+
3
)
=
0
(i)
(
9
17
,
(
-11
15
)
)
(ii)
(
7
17
,
(
-11
17
)
)
(iii)
(
9
17
,
(
-13
17
)
)
(iv)
(
7
19
,
(
-11
17
)
)
(v)
(
7
19
,
(
-11
15
)
)
Question
3
3.
Solve
(
−
2
x
−
y
−
5
)
=
1
(
−
4
x
−
5
y
+
4
)
=
(
−
3
)
(i)
(
(
-49
8
)
,
7
)
(ii)
(
(
-35
6
)
,
17
3
)
(iii)
(
(
-35
6
)
,
7
)
(iv)
(
(
-49
8
)
,
19
3
)
(v)
(
(
-37
6
)
,
19
3
)
Question
4
4.
Solve
(
5
x
+
y
+
1
)
=
(
3
x
−
5
y
)
(
4
x
+
y
+
3
)
=
(
3
x
+
4
y
−
4
)
(i)
(
(
-7
2
)
,
13
12
)
(ii)
(
(
-13
4
)
,
11
10
)
(iii)
(
(
-13
4
)
,
11
12
)
(iv)
(
(
-7
2
)
,
11
10
)
(v)
(
(
-15
4
)
,
13
12
)
Question
5
5.
Solve the following pair of equations :
1
x
+
14
y
=
79
3
x
+
11
y
=
82
(i)
(
1
9
,
(
-1
5
)
)
(ii)
(
1
9
,
1
3
)
(iii)
(
1
9
,
1
5
)
(iv)
(
1
3
,
1
5
)
(v)
(
1
11
,
1
5
)
Question
6
6.
Solve the following pair of equations :
−
4
x
+
7
y
=
(
−
18
)
x
+
1
y
=
(
−
1
)
(i)
(
1
,
(
-1
2
)
)
(ii)
(
2
,
(
-1
2
)
)
(iii)
(
4
,
(
-1
2
)
)
(iv)
(
1
,
1
2
)
(v)
(
1
,
(
-1
4
)
)
Question
7
7.
Solve the following pair of equations :
−
12
x
−
5
y
=
(
−
51
)
−
5
x
+
y
=
(
−
12
)
(i)
(
1
5
,
3
)
(ii)
(
1
,
3
)
(iii)
(
1
3
,
2
)
(iv)
(
1
3
,
3
)
(v)
(
1
3
,
0
)
Question
8
8.
Solve the following pair of equations :
−
7
(
x
+
y
)
+
3
(
x
−
y
)
=
(
−
39
)
−
9
(
x
+
y
)
+
16
(
x
−
y
)
=
47
(i)
(
17
146
,
(
-1
144
)
)
(ii)
(
19
144
,
(
-1
144
)
)
(iii)
(
17
144
,
(
-1
144
)
)
(iv)
(
17
144
,
(
-1
142
)
)
(v)
(
17
144
,
(
-1
48
)
)
Question
9
9.
Solve the following pair of equations :
−
7
(
3
x
+
y
)
−
12
(
3
x
−
y
)
=
(
−
87
)
−
11
(
3
x
+
y
)
−
4
(
3
x
−
y
)
=
(
−
3
)
(i)
(
(
-1
27
)
,
(
-2
7
)
)
(ii)
(
(
-1
27
)
,
(
-4
9
)
)
(iii)
(
1
27
,
(
-2
9
)
)
(iv)
(
(
-1
29
)
,
(
-2
9
)
)
(v)
(
(
-1
27
)
,
(
-2
9
)
)
Question
10
10.
Solve the following pair of equations :
3
(
x
+
9
)
−
7
(
y
+
6
)
=
47
5
(
x
+
9
)
−
6
(
y
+
6
)
=
33
(i)
(
1
,
(
-49
8
)
)
(ii)
(
(
-28
3
)
,
-1
)
(iii)
(
(
-28
3
)
,
(
-49
8
)
)
(iv)
(
(
-28
3
)
,
-2
)
(v)
(
2
,
(
-49
8
)
)
Question
11
11.
Solve the following pair of equations :
(
−
14
x
+
6
y
)
=
(
−
26
x
y
)
(
−
3
x
+
4
y
)
=
(
−
30
x
y
)
(i)
(
(
-1
7
)
,
(
-1
2
)
)
(ii)
(
(
-1
9
)
,
(
-1
2
)
)
(iii)
(
(
-1
3
)
,
(
-1
2
)
)
(iv)
(
(
-1
9
)
,
1
2
)
(v)
(
(
-1
9
)
,
(
-1
4
)
)
Question
12
12.
Solve the following pair of equations :
(
14
x
+
y
)
x
y
=
-93
(
8
x
+
7
y
)
x
y
=
-21
(i)
(
1
5
,
1
7
)
(ii)
(
1
5
,
(
-1
9
)
)
(iii)
(
1
5
,
(
-1
7
)
)
(iv)
(
3
5
,
(
-1
7
)
)
(v)
(
1
7
,
(
-1
7
)
)
Question
13
13.
Solve the following pair of equations :
5
√
x
+
10
√
y
=
-45
13
√
x
+
18
√
y
=
-45
(i)
(
1
81
,
1
79
)
(ii)
(
1
81
,
1
81
)
(iii)
(
1
83
,
1
81
)
(iv)
(
1
81
,
(
-1
81
)
)
(v)
(
1
27
,
1
81
)
Assignment Key
1) (i)
2) (ii)
3) (v)
4) (v)
5) (iii)
6) (i)
7) (iv)
8) (iii)
9) (v)
10) (iii)
11) (ii)
12) (iii)
13) (ii)