Answers

2015-07-23T20:37:01+05:30
X-(x-1)/2=1-(x-2)/5
⇒(x+1)/2=(7-x)/5
⇒5x+5=14-2x
⇒5x+2x=14-5
⇒7x=9
x=9/7                                  ans.

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2015-07-24T10:36:09+05:30
Q. x-(x-1)/2=1-(x-2)/5
(x-x-1)/2=(1-x+2)/5
-1/2=(3-x)/5
Transposing 2 and 5,
-5=6-2x

Transposing again,
2x=6+5 
2x=11
x=11/2
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I hope it will help you.
x- ( X - 1 ) / 2 = 1 - ( X - 2 ) / 5