Posted by Lavern on Friday, March 9, 2012 at 8:06pm.
having problem with this please help
∛3x+5+7=3

math problem  Reiny, Friday, March 9, 2012 at 9:26pm
I have a feeling there should be brackets somewhere
the way it stands .... assuming ∛(3x)
∛(3x) = 3  5  7
∛(3x) = 9
3x = 729
x = 243
If I take it just the way you typed it
∛3x + 5 + 7 = 3
∛3x = 9
x = 9/∛3 = appr 6.24
PLease let me know where the brackets should be

math problem  Tutor, Friday, March 9, 2012 at 11:36pm
I believe it's
∛(3x+5)+7=3
there is NO solution for this question.
Cheers!
da.guy1[at]yah oo

math problem  Steve, Saturday, March 10, 2012 at 6:05am
Of course there's a solution.
∛(3x+5)+7=3
∛(3x+5) = 4
3x+5 = (4)^3 = 64
3x = 69
x = 23
Check:
∛(69+5)+7 = ∛64 + 7 = 4+7 = 3
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