Byju's Answer
Standard VII
Mathematics
Powers with Positive and Negative Exponents
If 5 x + 5 ...
Question
If
5
x
+
5
x
+
5
x
+
5
x
+
5
x
=
625
Find
x
.
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Solution
5
x
+
5
x
+
5
x
+
5
x
+
5
x
=
625
⟹
5
×
5
x
=
5
4
⟹
5
x
+
1
=
5
4
⟹
x
+
1
=
4
⟹
x
=
3
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1
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