deletions | additions       diff --git a/b__r_b__p_b___.tex b/b__r_b__p_b___.tex  index 5a15459..c8c219f 100644  --- a/b__r_b__p_b___.tex  +++ b/b__r_b__p_b___.tex 
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$b_{r} + b_{p} + b_{n} = 1 1$  if b_{r} > b_{p}--> approach