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Byju's Answer
Standard VII
Mathematics
Exponents with Like Bases
Solve the fol...
Question
Solve the following equations.
2
2
+
x
−
2
2
−
x
=
15
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Solution
2
2
+
x
−
2
2
−
x
=
15
4
(
2
x
−
2
−
x
)
=
15
4
(
2
2
x
−
1
)
=
15
(
2
x
)
4
(
2
x
)
2
−
15
(
2
x
)
−
4
=
0
2
x
=
4
⟹
x
=
2
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