The answer is simple. First you subtract 4 from each side to get xis lesss than or equal to 4
6
9
×__
54. or u can do 6×9 =54 so u can do it either way or do the 9 trick
and the fact is

The account will have decreased by $2640 after 2/3 year.
Answer:
x-2y/x
Step-by-step explanation:
x²-4xy+4y²/x²+xy-6y²÷x²+3xy/x²+6xy+9y² = x-2y/x