G Guest Guest Sep 2, 2005 #1 I need help with these problems... Solve for x where x is a real number for.. 1)logx+log(x-3)=1 2)e^3k=5 (do I figure this one out with logs?) 3)ln y=2t-3

I need help with these problems... Solve for x where x is a real number for.. 1)logx+log(x-3)=1 2)e^3k=5 (do I figure this one out with logs?) 3)ln y=2t-3

G Gene Senior Member Joined Oct 8, 2003 Messages 1,904 Sep 2, 2005 #2 1) log(x)+log(x+3)=log(10) x(x-3)=10 2) If you mean e^(3k) = 5 ln(e^3k)=ln(5) 3k=ln(5) 3) Not sure what you want. You can't get a real number with two variables.

1) log(x)+log(x+3)=log(10) x(x-3)=10 2) If you mean e^(3k) = 5 ln(e^3k)=ln(5) 3k=ln(5) 3) Not sure what you want. You can't get a real number with two variables.