Respuesta :
The answer is 11x/21
Please see the attached picture for full solution
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Answer:
[tex] \frac{11x}{21} [/tex]
Step-by-step explanation:
[tex] \frac{4x}{7} - \frac{x}{21} \\ = \frac{12x - x}{21} \\ = \frac{11x}{21} [/tex]
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