I think you solve this correctly
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Answer:
x=7 and y=1
Step-by-step explanation:
Number of subsets of A= 2×n(A)=2×4=8
Then,x+y=8
Thus y=(8-x)
Number of subsets of B= 2×n(B)=2×3=6
Therefore, x-y=6
=›x-(8-x)=6
=›x-8+x=6
=› 2x-8=6
=› 2x=6+8
=› 2x=14
=› x=14÷2
=› x=7
Thus, x=7 and y=(8-x)=(8-7)=1
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