Answer:
It's A.
Explanation:
Its a because 3x+4 and 2+3x+2 are both equivalent. The 2+2 is distributive for 4 in 3x+4. For example, x=2.
3(2)+4 = 10.
2+3(2)+2=10
D
It can't be A because you aren't using the distributive property. It's not B because using that logic 2+3=4+7 which is not true. It's not c because 3x+7 does not equal 3x+9. So the only logical answer is D.
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