SOLUTION: Please show me how to solve this: Log1/2 (x+3)=-4

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Question 847716: Please show me how to solve this:
Log1/2 (x+3)=-4
Answer by swincher4391(1107) About Me  (Show Source):
You can put this solution on YOUR website!
using change of base
ln(x+3)/ln(1/2) = -4
ln(x+3) = ln(1/2)* -4
ln(x+3) = 2.77529
e^(ln(x+3)) = e^2.77529
x+3 = 16
x = 13