The total number of eggs left in six baskets is equal to the total number of eggs in the original two baskets.

It is equivalent to taking out all the eggs in four baskets and putting them in two baskets to make it equal to the sum of the eggs in the original two baskets.

That is, the eggs in these four baskets are equal to the eggs taken in these two baskets.

Calculation:

50 × 2= 100 (1) Number of eggs taken out of two baskets.

100 ÷4 =25 (1) Take the original eggs in four empty baskets.

50+25=75 (1) Originally, the number of eggs in each basket

Comprehensive formula: 50× 2 ÷4+50=75 (pieces)

Equation:

Assuming that there are n eggs in the original basket, the equation is obtained according to the meaning of the question:

6(n-50) =2n

Solution: n=75