Respuesta :

83434949

Answer: 3x+4y

Step-by-step explanation: hope it helps

Answer:

3x + 3y + 7

Step-by-step explanation:

You can add 2x and x because they are like terms (think of the x being 1x, we just don't usually write the 1).  That's all you can do because none of the other terms are like terms.

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