SOLUTION: hi i need help with the following problem: the cubed root of 2x+7=5 (the five is not under the radical). i have it for homwork and i dont know what to do. i tried looking at

Algebra ->  Test -> SOLUTION: hi i need help with the following problem: the cubed root of 2x+7=5 (the five is not under the radical). i have it for homwork and i dont know what to do. i tried looking at      Log On


   

Question 440123: hi i need help with the following problem:
the cubed root of 2x+7=5 (the five is not under the radical).
i have it for homwork and i dont know what to do. i tried looking at my notes but thats not really helping me. if you could show me how to figure out this problem that would be great! thank you
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
 

Hi

     root%283%2C2x%2B7%29+=+5

    2x+ 7 = 125   |Cubing both sides of the EQ

     2x = 118

      x = 59