Answer:
x = 10
Explanation:
28/20 = 1.4
4x+2/3x = 1.4
4x+2/3x = 14/10
40x+20 = 42x
40x-42x = -20
-2x = -20
-x = -20/2
-x = -10
3.3m questions
4.2m answers