Answer:
It appears to be substitution
Step-by-step explanation:
I think you are talking about system of equations
The opposite would be 3
__
4
Just switch out the negatives for positives
4 cups equals to 16 cups becuase 1 quart equals 4 cups
The answer is 10, you would multiply 8 by 2 because 8 represents N , it would be 16-6
