Respuesta :

vrajeshparikh330

Answer:

3x + 21

Step-by-step explanation:

3(x+7)

3 * x + 3 * 7

3x + 21

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PLZZ MARK BRAINLIEST

FAUniverse

Answer:

3x + 21

Step-by-step explanation:

3(x + 7)

3(x + 21)

3x + 21

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