Answers

2014-05-28T08:59:07+05:30
For example  4r - 7 =8r + 13
                  = 4r - 8r = 13 + 7
                  = - 4r = 20
                  = -r = 20/4
                  = -r = 5.
                              ans.
1 5 1
2014-05-28T13:17:49+05:30
(Logbtothe base a)(logc baseb)(logd base c)(loga base d)=logbcda to the base abcd=1
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