SOLUTION: Alright, the question is log base 3 2x+log base 3 7= log base 3 28.
I know that the answer is 2, but i have no clue how to get to it. I tried canceling out the log base 3 part
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Question 493072: Alright, the question is log base 3 2x+log base 3 7= log base 3 28.
I know that the answer is 2, but i have no clue how to get to it. I tried canceling out the log base 3 part since they are all the same, and then it came out to 2x+7=28 and solved that, but then x would equal 10.5z please help!
Found 3 solutions by nerdybill, josmiceli, Gogonati:
Answer by nerdybill(7384) (Show Source): You can put this solution on YOUR website!
apply "log rules":
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Use the formula
( in reverse )
If the logs are equal, the numbers are equal
( the base could be anything you want )
Answer by Gogonati(855) (Show Source): You can put this solution on YOUR website!
2x=4
x=2
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