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Byju's Answer
Standard XII
Mathematics
Manipulation of a linear equation
Solve the fol...
Question
Solve the following equation and verify your answer:
3
x
+
5
2
x
+
7
=
4
Open in App
Solution
3
x
+
5
2
x
+
7
=
4
or
3
x
+
5
=
8
x
+
28
or
8
x
+
28
=
3
x
+
5
(
After c
ross
multipl
ication
)
or
8
x
-
3
x
=
5
-
28
or
5
x
=
-
23
or
x
=
-
23
5
∴
x
=
-
23
5
is
the
solution
of
given
equation
.
Check
:
Substituting
x
=
-
23
5
in
the
given
equation
,
we
get
:
L
.
H
.
S
.
=
3
×
-
23
5
+
5
2
×
-
23
5
+
7
=
-
69
+
25
-
46
+
35
=
-
44
-
11
=
4
R
.
H
.
S
.
=
4
∴
L
.
H
.
S
.
=
R
.
H
.
S
.
for
x
=
-
23
5
Suggest Corrections
3
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Standard XII Mathematics
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