Agroup of hens laid the same number of eggs each day for a week. kelly collected the eggs for six days. write an expression to show the number of eggs kelly did not collect.

Number of eggs=6x
Its that simple equation, because if hens laid the same number of eggs each day (and we dont know how much per day, so I put x instead of it) but we know that Kelly collected the eggs for six days we can put there 6.
Finally we obtainted number of eggs =6*x