1 + (4x + 2)/2x = 5/x

1 + (2x + 1)/x = 5/x

(3x + 1)/x = 5/x

Cross-multiply:

3x^2 + x = 5x

3x^2 -4x = 0

x (3x – 4) = 0

x = 0 (rejected as x =/= 0) or x = 4/3 //