It is required to make 14 grams of certain chemical compound called z. this is made from compounds w, x, and y in the ratio of 2:1:3. the compound y is itself made from w and x. to make 6 grams of y r

It is required to make 14 grams of certain chemical compound called z. this is made from compounds w, x, and y in the ratio of 2:1:3. the compound y is itself made from w and x. to make 6 grams of y requires 4 grams of w and 2 grams of x. how much w and x is required to make the required amount of z.