Question

m/2-m/4+7m/6=21 please solve

Answer 1

m/2-m/4+7m/6=21
6m-3m+14m/12=21
=> 3m+14m/12 = 21
=> 17m = 21
=> m = 21×12/17
=> m = 252/17
=> m = 14.82.......