Which value is equivalent to x+4/4+x? a. -4 b. -1 c. 1 d. 4

Hello :

(x+4)/(4+x) = (x+4)/(x+4)  = 1   ( answer : C )  but x+4 no : 0

C. 1

Step-by-step explanation:

Commutative property says that changing the order of the operands does not change the result. This can be expressed as:

Using the previous information, we can say:

And rewrite the equation as:

Since the numerator and denominator are the same: