Otto used 6 cups of whole wheat flour and x cups of white flour in the recipe. what is the equation that can be used to find the value of y, the total amount of flour that otto used in the recipe, and what are the constraints on the values of x and y?

Well, there are  amounts of white flower and 6 cups of wheat flower.
So the total flower is 
Given that  is the total, the equation you would use is:

The constraints are as follows:y can only be  6
And if y=0, x would have to be -6 (which is impossible) 

Mark brainliest Please and thank you :)