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Class VI
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Class IX
Class X
CBSE Grade VIII - Linear Equations in One Variable
Question
1
1.
The ages of A and B are in the ratio 9 : 8. 7 years ago, their ages were in the ratio 8 : 7. Find their present ages.
45
:
40
63
:
56
54
:
48
81
:
72
Question
2
2.
The L.H.S of the equation
(
−
2
x
−
2
)
=
(
−
7
x
+
5
)
is
(
−
2
x
+
1
)
(
−
3
x
−
2
)
(
−
2
x
−
5
)
(
−
2
x
−
2
)
(
−
7
x
+
5
)
Question
3
3.
Solve :
−
5
(
x
+
8
)
+
3
(
x
+
3
)
=
−
9
(
x
+
3
)
+
7
(
x
−
8
)
(
-174
11
)
(
-78
5
)
(
-204
13
)
(
-202
13
)
(
-206
13
)
Question
4
4.
Solve :
(
5
x
−
5
)
+
(
−
x
−
3
)
=
(
−
5
x
−
2
)
4
8
5
4
3
8
7
10
7
12
7
Question
5
5.
Solve :
(
−
x
+
1
)
2
+
(
x
−
4
)
=
(
x
+
4
)
18
17
2
65
8
69
8
83
10
67
8
Question
6
6.
Two numbers are in the ratio 8 : 15. If 16 is added to each number, the ratio becomes 10 : 17. Find the numbers.
64
:
120
80
:
150
56
:
105
48
:
90
72
:
135
Question
7
7.
The R.H.S of the equation
(
−
9
x
)
=
(
−
8
x
−
4
)
is
(
−
8
x
−
7
)
(
−
8
x
−
4
)
(
−
9
x
)
(
−
8
x
−
1
)
(
−
9
x
−
4
)
Question
8
8.
Solve :
(
8
x
−
7
)
(
−
x
+
4
)
=
(
−
3
)
2
4
13
2
13
0
2
15
2
11
Question
9
9.
Solve :
(
−
x
+
5
)
+
(
x
+
4
)
=
(
−
x
−
2
)
2
-21
-18
-19
-20
-23
Question
10
10.
Solve the equation
(
7
4
x
−
3
2
)
=
7
3
42
19
44
21
50
23
46
21
16
7
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