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Byju's Answer
Standard VIII
Mathematics
Performing Mathematical Operations on Equation
Solve:3 x+54 ...
Question
Solve:
3
x
+
5
4
x
+
2
=
3
x
+
4
4
x
+
7
Open in App
Solution
3
x
+
5
4
x
+
2
=
3
x
+
4
4
x
+
7
⇒
(
4
x
+
7
)
(
3
x
+
5
)
=
(
4
x
+
2
)
(
3
x
+
4
)
(
by
cross
multiplication
)
⇒
12
x
2
+
20
x
+
21
x
+
35
=
12
x
2
+
16
x
+
6
x
+
8
⇒
12
x
2
+
41
x
+
35
=
12
x
2
+
22
x
+
8
⇒
12
x
2
-
12
x
2
+
41
x
-
22
x
=
8
-
35
⇒
19
x
=
-
27
⇒
x
=
-
27
19
∴
x
=
-
27
19
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0
Similar questions
Q.
Solve the following equation and verify your answer:
3
x
+
5
4
x
+
2
=
3
x
+
4
4
x
+
7
Q.
Prove that (3x + 7) is a factor of
(
6
x
3
+
29
x
2
+
44
x
+
21
)
.
Q.
Solve:
|
(
x
2
+
2
x
+
2
)
+
(
3
x
+
7
)
|
<
|
x
2
+
2
x
+
2
|
+
|
3
x
+
7
|
.
Q.
Solve the following:
(
3
x
+
7
)
(
3
x
−
7
)
(
9
x
2
+
49
)
Q.
Solve :
x
3
+
3
x
2
+
3
x
+
7
=
0
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