Someone is writing the answer so ill just give you this tip for whenever.
A negitive times a negitive is positive
a negative times a positive is negitive
and a positive times a positive is positive (just had to add it to be complete)
There are 6 2/3 cup servings in a 4 cup container.
The answer to the question
I think 1.99?
I have no idea but I think it’s that
25-4x=16-4x
25-4x+4x=16-4x+4x
25=16
No solution
Contradiction