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5 votes
Please help me solve this 5^2x=7^x+1

User Blex
by
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2 Answers

5 votes
it’s gonna translate to 25x=7x+1
so then 18x=1
User Spike Gronim
by
4.3k points
4 votes

Answer:


x=(ln7)/(2ln5-ln7)

Explanation:

5^2x=7^x+1 ⇔ ln5^2x = ln7^x+1 ⇔ 2xln5 = (x+1)ln7 ⇔ (2ln5-ln7)x = ln7

⇔ x = ln7/(2ln5-ln7)

User Kuby
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