Tìm x: a) 62/7 × x = 29/9 : 3/56; b) x - 3/10 = 7/15 × 3/5

Tìm x:
a) 62/7×x=29/9:3/56
b) x-3/10=7/15×3/5
c) 8/23×46-x=1/3
d) 0,04x-0,05x11
e) x-(50x/100+25x/100=11và1/4
h) 5/9+x/-1=-1/3