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October 21, 2014

October 21, 2014

Posted by **Lavern** on Friday, March 9, 2012 at 8:06pm.

∛3x+5+7=3

- math problem -
**Reiny**, Friday, March 9, 2012 at 9:26pmI 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 11:36pmI 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 6:05amOf 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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