SOLUTION: log(4)+log(x+5)=2
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Question 683999
:
log(4)+log(x+5)=2
Answer by
jim_thompson5910(35256)
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log(4)+log(x+5)=2
log(4(x+5))=2
4(x+5)=10^2
4(x+5)=100
x+5=100/4
x+5=25
x=25-5
x=20
So the solution is x=20. Don't forget to check it (I'll let you do this).