Which best proves why the expressions 4 times open paren x plus 3 close paren plus 2 x and 6 times open paren x plus 2 close paren must be equivalent expressions?
Answer
A
When x is equal to 5 , both expressions have a value of 42 .
B
When x is equal to 2 , both expressions have a value of 15 , and when x is equal to 6 , both expressions have a value of 39 .
C
When x is equal to 1 , both expressions have a value of 18 , and when x is equal to 8 , both expressions have a value of 60 .
D
When x is equal to 3 , both expressions have a value of 30 .