For this case we have the following expression:
[tex] 14 + 3x - 7 = 7x + 7 - 4x
[/tex]
To answer the question, what we must do is rewrite both sides of the equation.
For this, we apply the associative property.
We have then:
[tex] 3x + (14-7) = (7x-4x) + 7
[/tex]
Rewriting we have:
[tex] 3x + 7 = 3x + 7
[/tex]
Since both sides of the equation are equal, then the expression is always true.
Answer:
A) Always
