Tìm x, biết: a) x + 1/2 = 4/3 b) x * 3/7 = 2/3 c) 1/3 * (x - 1) = 2 1/3 d) x/15 = 2/3 e) x/4 = 16/x

Bài 3:tìm x,biết:
a)x+1/2=4/3
b)x*3/7=2/3
c)1/3*x-1=2 1/3
d)x/15=2/3
e)x/4=16/x