9. (10 points) Using 4 digit 4s and some addition, subtraction, multiplication, division, and parentheses, write 2 different expressions that both equal 7.
(If two expressions are made the same by the commutative and associative laws of addition and multiplication, they are considered the same expression)
【Analysis】Since $4+4=8, 4 \div 4=1, 8-1=7$, we get: $4+4-4 \div 4=7$; since $44 \div 4=11, 11-4=7$, we get: $44 \div 4-4=7$; based on this, solve.

【Solution】Solution: $4+4-4 \div 4=7$
$$
44 \div 4-4=7
$$