Solving Log6 36 = 5x+3: Can't get the Answer Right

  • Thread starter Rusho
  • Start date
In summary, the conversation involved a person struggling to get a correct answer in an equation, with multiple incorrect uses of the equality sign. The correct answer was eventually found to be x = -1/5, but the person had forgotten to add a minus sign in the final steps. The expert summarizer suggests incorporating more negativity in the future.
  • #1
Rusho
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I got an answer, but I cannot get it to check correctly:

=6 ^5x+3 =36
=6 ^5x+3 = 6^2
=5x+3 =2
=5x = -3+2
=5x = -1
x= 1/5

But I put 1/5 into the equation and it does not work out correctly.
 
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  • #2
Check your work again. I think you'll laugh.
 
  • #3
Rusho said:
I got an answer, but I cannot get it to check correctly:

this equality sign means??->=6 ^(5x+3) =36 Missing parentheses:mad:
(=)6 ^(5x+3) = 6^2
Totally incorrect use of equality sign! :mad:-> =5x+3 =2
Totally incorrect use of equality sign! :mad:->=5x = -3+2
(=)5x = -1
x= 1/5
Where did the minus sign go?
 
  • #4
Without the equals

6 ^5x+3 =36
6 ^5x+3 = 6^2
5x+3 =2
5x = -3+2
5x = -1
5x/5 = -1/5
x= - 1/5

OH I see now I get "2" and 6^2 =36 :)
 
  • #5
[tex]6^{5*(-\frac{1}{5})+3}=6^{-1+3}=6^{2}=36[/tex]
your problem being?
 
  • #6
Your problem was on the last lines:

5x = -1
x= 1/5


You forgot about the minus sign.
 
  • #7
You should try being more negative. :smile: :smile:
 
  • #8
Curious3141 said:
You should try being more negative. :smile: :smile:
:mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :mad: :biggrin:
 

FAQ: Solving Log6 36 = 5x+3: Can't get the Answer Right

What is the purpose of solving logarithms?

The purpose of solving logarithms is to find the unknown variable in an exponential equation. Logarithms are useful in many scientific and mathematical calculations, particularly when dealing with large numbers or exponential growth.

How do you solve logarithms?

To solve a logarithm, you need to use the inverse operation of exponentiation. For example, if the equation is log2 8 = x, you would rewrite it as 2x = 8. Then, you can see that x = 3, since 23 = 8.

What is the base of a logarithm?

The base of a logarithm is the number that the logarithm is being applied to. For example, in log2 8, the base is 2. This means that 2 is being raised to a certain power to equal 8.

Why can't I get the answer right when solving logarithms?

Solving logarithms can be tricky, especially if you are not familiar with the rules and properties of logarithms. It is important to follow the correct steps and use the correct formulas when solving logarithms to get the right answer.

What are some common mistakes when solving logarithms?

Some common mistakes when solving logarithms include forgetting to apply the inverse operation of exponentiation, using the wrong base, or making a calculation error. It is important to double check your work and use a calculator when necessary to avoid these mistakes.

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