SOLUTION: what is the answer to, log(x+4)+log5=log10x

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Question 299536: what is the answer to, log(x+4)+log5=log10x
Answer by dabanfield(803) About Me  (Show Source):
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what is the answer to, log(x+4)+log5=log10x
By a law of logs we have log(x+4) + log(5) = log((x+4)*5) so we have:
log((x+4)*5) = log(10x) so
(x+4)*5 = 10x
5x + 20 = 10x
5x = 20
x = 4