SOLUTION: can you please give me a solution to this question? 4= -2/5u thank you!

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Question 388658: can you please give me a solution to this question?
4= -2/5u
thank you!
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If the equation is 4=+-%282%2F5%29u then


4=+-%282%2F5%29u Start with the given equation.


4%2A5=+-2u Multiply both sides by 5.


20=+-2u Multiply


20%2F%28-2%29=+u Divide both sides by -2.


-10=+u Reduce


So the solution is u=-10


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If the equation is 4=+-2%2F%285u%29 then


4=+-2%2F%285u%29 Start with the given equation.


4%2A5u=+-2 Multiply both sides by 5u.


20u=+-2 Multiply


u=+-2%2F20 Divide both sides by -20.


u=+-1%2F10 Reduce


So the solution is u=+-1%2F10


If you need more help, email me at jim_thompson5910@hotmail.com

Also, feel free to check out my tutoring website

Jim