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Byju's Answer
Standard VIII
Mathematics
Solving Equations with Linear Expressions on One Side and Numbers on the Other Side
Solve each of...
Question
Solve each of the following equations and verify the answer in each case:
2
m
3
+
8
=
m
2
-
1
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Solution
2
m
3
+
8
=
m
2
-
1
or,
2
m
3
-
m
2
=
-
1
-
8
[Transposing m/2 to the L.H.S. and 8 to the R.H.S.]
o
r
,
4
m
-
3
m
6
=
-
9
o
r
,
m
6
=
-
9
or,
m
6
×
6
=
-
9
×
6
[Multiplying both the sides by 6]
or, m =
-
54
Verification:
Substituting x = −54 on both the sides:
L
.
H
.
S
.
:
2
(
-
54
)
3
+
8
=
-
54
2
-
1
=
-
108
3
+
8
=
-
36
+
8
=
-
28
R
.
H
.
S
.
:
-
54
2
-
1
=
-
27
-
1
=
-
28
L.H.S. = R.H.S.
Hence, verified.
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