En resumen

= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7x%2B63%7D%7B5%7D%2B12x-7%3C%5Cfrac%7B21x%2B42%7D%7B30%7D%2B%5Cfrac%7B1%7D%7B2%7D" /> = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B67x%2B28%7D%7B5%7D%3C%5Cfrac%7B21x%2B57%7D%7B30%7D" /> = <img src="https://tex.z-dn.net/?

Mejor respuesta

8

= <img src="https://tex.z-dn.net/?f=%5Cfrac%7B7x%2B63%7D%7B5%7D%2B12x-7%3C%5Cfrac%7B21x%2B42%7D%7B30%7D%2B%5Cfrac%7B1%7D%7B2%7D" /> = <img src="https://tex.z-dn.net/?f=%5Cfrac%7B67x%2B28%7D%7B5%7D%3C%5Cfrac%7B21x%2B57%7D%7B30%7D" /> = <img src="https://tex.z-dn.net/?f=67x%2B28%3C%5Cfrac%7B21x%2B57%7D%7B6%7D" /> = <img src="https://tex.z-dn.net/?f=402x%2B168%3C21x%2B57" /> = 381x.