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CTET 2 Math and Science Jan 2021 Paper
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© examsnet.com
Question : 49
Total: 150
If
5
x
−
7
3
+
2
=
4
x
−
3
4
+
4
x
, then the value of
(
8
x
+
5
)
is
9
13
6
7
Validate
Solution:
5
x
−
7
3
+
2
=
4
x
−
3
4
+
4
x
⇒
4
x
−
3
4
−
5
x
−
7
3
=
2
−
4
x
⇒
3
(
4
x
−
3
)
−
4
(
5
x
−
7
)
12
=
2
−
4
x
⇒
12
x
−
9
−
20
x
+
28
=
24
−
48
x
⇒
−
8
x
=
24
−
28
+
9
−
48
x
⇒
40
x
=
5
⇒
x
=
1
8
Value of
8
x
+
5
=
8
×
1
8
+
5
=
1
+
5
=
6
© examsnet.com
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