SOLUTION: How would you solve this :
log (4+x) - log (x-4)= log 3
I don't even know where to begin , I've never seen a logarithmic equation set up equal to log 3 .
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Question 473408: How would you solve this :
log (4+x) - log (x-4)= log 3
I don't even know where to begin , I've never seen a logarithmic equation set up equal to log 3 .
Answer by ccs2011(207) (Show Source): You can put this solution on YOUR website!
Use log property: to combine left side into a single log.
Rewrite equation in exponential form, Or notice that if log(a)=log(b) then a=b
Multiply by (x-4) on both sides
Distribute
Subtract 3x on both sides
Subtract 4 on both sides
Divide by -2 on both sides
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