SOLUTION: Solve 7^-x = 49^x+3 without using logarithms. I can't find anything about this in my book. Please help. Thank you.

SOLUTION: Solve 7^-x = 49^x+3 without using logarithms. I can't find anything about this in my book. Please help. Thank you.

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Question 17183: Solve 7^-x = 49^x+3 without using logarithms. I can't find anything about this in my book. Please help. Thank you.
Answer by xcentaur(357) (Show Source): You can put this solution on YOUR website!

equating the bases we get,
-x=2(x+3)
-x=2x+6
-3x=6
x=-2

Hope this helps,
Prabhat

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