Answer:
[tex]\frac{2}{3} x[/tex] < is the answer.
Step-by-step explanation:
Let number be x
two third of x = [tex]\frac{2}{3} x[/tex]
two third of x decreased by 4 = [tex]\frac{2}{3} x[/tex] -4
which is less than 6 therefore mathematically it equals
[tex]\frac{2}{3} x[/tex] -4< 6