Answer:
x - y = 14
Step-by-step explanation:
sum the parts of the ratio, 5 + 3 = 8 parts
Divide 56 by 8 to find the value of one part of the ratio.
56 ÷ 8 = 7 ← value of 1 part of the ratio, thus
x = 5 × 7 = 35
y = 3 × 7 = 21
Thus x - y = 35 - 21 = 14