Respuesta :

maryammulla53

Answer:

21x-14

Step-by-step explanation:

you just need to multiple 7×3 and you'll get 21x-and then you'll multiply 7×2 and then you'll get 21x-14

easpita1211
Answer: 21x - 14

Step-by-step-explanation:
7×3x - 7×2
21x - 14

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