SOLUTION: solve the equation 2lnx+5=7 please help me solve this equation

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Question 197262: solve the equation
2lnx+5=7
please help me solve this equation
Answer by jim_thompson5910(21685) About Me  (Show Source):
You can put this solution on YOUR website!
Is the equation 2%2Aln%28x%2B5%29=7 ????

2%2Aln%28x%2B5%29=7 Start with the given equation.


ln%28x%2B5%29=7%2F2 Divide both sides by 2.


x%2B5=e%5E%287%2F2%29 Rewrite the equation using the property: ln%28x%29=y ====> e%5Ey=x


x=e%5E%287%2F2%29-5 Subtract 5 from both sides.


So the solution is x=e%5E%287%2F2%29-5 which approximates to


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OR....

Is the equation 2%2Aln%28x%29%2B5=7 ????


2%2Aln%28x%29%2B5=7 Start with the given equation.


2ln%28x%29=7-5 Subtract 5 from both sides.


2ln%28x%29=2 Combine like terms.


ln%28x%29=2%2F2 Divide both sides by 2.


ln%28x%29=1 Reduce


x=e%5E1 Rewrite the equation using the property: ln%28x%29=y ====> e%5Ey=x


x=e Simplify


So the solution is x=e which approximates to


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