Which two expressions are equivalent?

Question

Responses
A (9 + 4) • x and 9 + (4 • x)(9 + 4) • x and 9 + (4 • x )
B (11 – 6) ÷ x and x ÷ (6 – 11)(11 – 6) ÷ x and x ÷ (6 – 11)
C 7 + (6 • x) and 7 + (x • 6)7 + (6 • x ) and 7 + ( x • 6)
D (x – 11) ÷ 7 and x – (11 ÷ 7)( x – 11) ÷ 7 and x – (11 ÷ 7)

Answer 1

A (9 + 4) • x and 9 + (4 • x)(9 + 4) • x and 9 + (4 • x )