SOLUTION: Can you please help me figure out how to solve this problem? log(40x+200)=3 Here is what I came up with. log40x+log200=3 log40x+2.301=3 log40x=.699 x=.4363 When I plug X ba

Question 526762: Can you please help me figure out how to solve this problem?
log(40x+200)=3
Here is what I came up with.
log40x+log200=3
log40x+2.301=3
log40x=.699
x=.4363
When I plug X back into the equation, it doesn't come out right.
Answer by Earlsdon(6294) (Show Source): You can put this solution on YOUR website!
It's not surprising that it doesn't come out right!
Because:
is not equal to
Here's what you must do:
Change this to the exponential form:If then
----> Simplify:
Subtract 200 from both sides.
Divide both sides by 40.

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