SOLUTION: log4 (2x+5) = 8

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Question 741538: log4 (2x+5) = 8
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
+log%284%2C2x%2B5%29=+8....in base 10 will be

+log%28%282x%2B5%29%29%2Flog%28%284%29%29=+8

+log%28%282x%2B5%29%29=+8log%28%284%29%29

+log%28%282x%2B5%29%29=+log%28%284%5E8%29%29

+log%28%282x%2B5%29%29=+log%28%2865536%29%29 if so, then

+2x%2B5=+65536

+2x=+65536-5

+2x=+65531

+x=+65531%2F2

+x=+32765.5