Question

1/2d-1>-15 is d > 28. is this true of false?

Answer 1

if we we (1/2d-1)>(-15) --> 1>(-15)(2d-1) --> 1>-30d+15 -->1-15>-30d --> -14>-30d and then finally that imples (-14/-30) < d --> 7/15 <d so therefore d > 7/15 therefore False