Solve x, if log(10x+5) - log(x-4) =2
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log 10x+5/x-4 = log 100
10x+5/x-4 = 100
10x+5 = 100x-400
5+400 = 100x-10x
405 = 90x
405/90 = x
4.5 = x
10x+5/x-4 = 100
10x+5 = 100x-400
5+400 = 100x-10x
405 = 90x
405/90 = x
4.5 = x
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