Qualification > Math

can any1 solve this maths question.

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immortal:

--- Quote from: A@di on May 04, 2010, 01:01:11 pm ---@immortal - u answered ur own doubt, lol.

--- End quote ---
I actually got da ans today,& sme told da ans 0.107 waz wrong, dats y...

Igcseboy:

--- Quote from: immortal on May 04, 2010, 12:56:50 pm ---I got da ans.
3x+2=3x+32
3x*32=3x+32
9*3x=3x+9
9*3x-3x=9
3x(9-1)=9
3x*8=9
3x=9/8
x=ln(9/8)/ln3
x=0.107(3 s.f)

It cud also b done using iteration.


--- End quote ---

how did u get (9-1)????

dlehddud:
It's cos he factorised out of the equation to get (9-1)

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