SOLUTION: i need help understanding this solve 9/x+3/x=6/(x-12) thank you so much

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Question 470444: i need help understanding this
solve 9/x+3/x=6/(x-12)
thank you so much
Answer by lwsshak3(11628) About Me  (Show Source):
You can put this solution on YOUR website!
i need help understanding this
solve 9/x+3/x=6/(x-12)
**
9/x+3/x=6/(x-12
12/x=6/(x-12)
LCD:x(x-12)
12(x-12)=6x
12x-144=6x
6x=144
x=24
Check:
9/24+3/24=6/24-12
12/24=6/12
1/2=1/2