We are given that 8 oz of milk requires 15 oz of flour.
To know the amount of flour needed for 15 oz of milk, we will simply use cross multiplication as follows: amount of flour needed = (15*15) / (8) = 28.125 oz
to isolate the variable you simply solve for it by moving all the terms which don't contain x to the right by multiplying, subtracting, adding, and dividing
