Answer:
Step-by-step explanation:
Let the box tops collected by Mrs Goby be represented by x.
Since Mrs William's collected 4 more then mrs. Goby, Mrs Williams will have: = x+4
Miss Williams and mrs Laplant had the same number of box tops. They both had x+4 box tops.
To calculate the number of box tops that mrs. William's collect will be:
x + (x + 4) + (x + 4) = 64
3x + 8 = 64
3x = 64 - 8
3x = 56
x = 56/3
x = 18 1/3
Therefore, box too collected by Miss Williams will be:
= x + 4
= 18 1/3 + 4
= 22 1/3
= 22 approximately
