Respuesta :

x+x+x+2 = 3x+2

So,

A is correct

B is wrong

C is wrong

D is correct [2x+2+x = 3x+2]

E is wrong

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Answer:

Step-by-step explanation:

x+x+x+2

Since x are like terms we can add them which mean

x+x+x=3x

3x and 2 cannot be added so leave as it is

x+x+x+2=3x+2

Therefore x+x+x+2 is equivalent to 3x+2