Tìm x, biết: a) 5/6.x = 8/7; b) x.3 = 1 1/5; c) 3.x - 3/4.x = 927

1 tìm x
a 5/6 . x = 8/7
b x . 3 = 1 & 1/5
c 3 . x - 3/4 . x = 927
d x + 5/4 = 2- 4/7
e 176,4 -x = 37,95