EduSahara™ Assignment
Name : Simultaneous Equations
Chapter : Linear Equations and Simultaneous Linear Equations
Grade : ICSE Grade IX
License : Non Commercial Use
Question
1
1.
Solve
(
3
x
+
3
)
=
0
(
−
8
x
−
y
−
7
)
=
0
(i)
(
-1
,
-1
)
(ii)
(
-1
,
0
)
(iii)
(
-1
,
1
)
(iv)
(
0
,
1
)
(v)
(
1
,
1
)
Question
2
2.
Solve
(
−
5
x
−
3
y
+
2
)
=
0
(
4
x
+
4
y
−
1
)
=
0
(i)
(
7
8
,
(
-5
8
)
)
(ii)
(
5
8
,
(
-3
8
)
)
(iii)
(
1
2
,
(
-1
2
)
)
(iv)
(
7
8
,
(
-1
2
)
)
(v)
(
1
2
,
(
-3
8
)
)
Question
3
3.
Solve
(
−
x
+
4
y
+
1
)
=
4
(
x
−
5
y
+
5
)
=
(
−
1
)
(i)
(
10
,
3
)
(ii)
(
10
,
2
)
(iii)
(
12
,
2
)
(iv)
(
12
,
0
)
(v)
(
9
,
3
)
Question
4
4.
Solve
(
−
2
x
+
3
y
+
4
)
=
(
−
4
x
−
5
y
−
4
)
(
5
x
−
5
y
−
1
)
=
(
−
2
x
−
4
y
+
4
)
(i)
(
16
31
,
(
-33
29
)
)
(ii)
(
16
29
,
(
-33
29
)
)
(iii)
(
18
29
,
(
-31
27
)
)
(iv)
(
18
29
,
(
-35
29
)
)
(v)
(
16
31
,
(
-31
27
)
)
Question
5
5.
Solve the following pair of equations :
−
7
x
+
6
y
=
8
−
11
x
+
4
y
=
(
−
20
)
(i)
(
3
4
,
1
6
)
(ii)
(
1
4
,
(
-1
6
)
)
(iii)
(
1
6
,
1
6
)
(iv)
(
1
4
,
1
4
)
(v)
(
1
4
,
1
6
)
Question
6
6.
Solve the following pair of equations :
−
x
−
14
y
=
(
−
19
)
6
x
−
16
y
=
(
−
86
)
(i)
(
-9
,
1
2
)
(ii)
(
-7
,
1
2
)
(iii)
(
-8
,
1
2
)
(iv)
(
-9
,
1
)
(v)
(
-9
,
(
-1
2
)
)
Question
7
7.
Solve the following pair of equations :
5
x
+
11
y
=
21
−
1
x
−
5
y
=
(
−
7
)
(i)
(
1
2
,
0
)
(ii)
(
1
2
,
1
)
(iii)
(
1
2
,
-1
)
(iv)
(
1
4
,
1
)
(v)
(
3
2
,
1
)
Question
8
8.
Solve the following pair of equations :
2
(
x
+
y
)
−
10
(
x
−
y
)
=
72
16
(
x
+
y
)
−
6
(
x
−
y
)
=
(
−
16
)
(i)
(
(
-1
6
)
,
(
-1
16
)
)
(ii)
(
(
-1
16
)
,
(
-1
16
)
)
(iii)
(
(
-3
16
)
,
(
-1
14
)
)
(iv)
(
(
-3
16
)
,
(
-1
16
)
)
(v)
(
(
-3
16
)
,
(
-3
16
)
)
Question
9
9.
Solve the following pair of equations :
−
7
(
2
x
+
y
)
+
3
(
2
x
−
y
)
=
0
−
13
(
2
x
+
y
)
−
2
(
2
x
−
y
)
=
(
−
53
)
(i)
(
5
42
,
2
21
)
(ii)
(
5
42
,
2
19
)
(iii)
(
5
42
,
0
)
(iv)
(
5
44
,
2
21
)
(v)
(
1
6
,
2
21
)
Question
10
10.
Solve the following pair of equations :
1
(
x
+
9
)
+
12
(
y
−
1
)
=
(
−
53
)
−
1
(
x
+
9
)
−
1
(
y
−
1
)
=
(
−
2
)
(i)
(
2
,
4
5
)
(ii)
(
(
-62
7
)
,
-3
)
(iii)
(
1
,
4
5
)
(iv)
(
(
-62
7
)
,
4
5
)
(v)
(
(
-62
7
)
,
-1
)
Question
11
11.
Solve the following pair of equations :
(
11
x
−
11
y
)
=
77
x
y
(
−
4
x
−
3
y
)
=
(
−
42
x
y
)
(i)
(
3
2
,
1
9
)
(ii)
(
1
2
,
1
7
)
(iii)
(
1
2
,
1
9
)
(iv)
(
1
4
,
1
9
)
(v)
(
1
2
,
(
-1
9
)
)
Question
12
12.
Solve the following pair of equations :
(
14
x
+
12
y
)
x
y
=
52
(
10
x
+
8
y
)
x
y
=
32
(i)
(
1
9
,
1
4
)
(ii)
(
1
3
,
(
-1
4
)
)
(iii)
(
1
9
,
(
-1
6
)
)
(iv)
(
1
11
,
(
-1
4
)
)
(v)
(
1
9
,
(
-1
4
)
)
Question
13
13.
Solve the following pair of equations :
−
16
√
x
+
9
√
y
=
-81
−
7
√
x
+
4
√
y
=
-35
(i)
(
1
81
,
1
49
)
(ii)
(
1
27
,
1
49
)
(iii)
(
1
81
,
1
47
)
(iv)
(
1
83
,
1
49
)
(v)
(
1
81
,
(
-1
49
)
)
Assignment Key
1) (iii)
2) (ii)
3) (v)
4) (ii)
5) (v)
6) (i)
7) (ii)
8) (iv)
9) (i)
10) (iv)
11) (iii)
12) (v)
13) (i)