Ayudemme a calcular estos proplemas - (5 + 7x( - 3) + 21 / 7 - 418 / (6x2 - 3)(16 - ( - 4)x2) (5 / ( - 5) + 2 / ( - 2) - 10 / (3x5 - 5) urgente?

Bueno : la primera

<img src="https://tex.z-dn.net/?f=5%2B7%20%28-3%29%2B%20%5Cfrac%7B21%7D%7B7%7D%20-4" />

<img src="https://tex.z-dn.net/?f=5-7%2A3%20%2B%20%20%5Cfrac%7B3%2A7%7D%7B7%7D%20-4" />

<img src="https://tex.z-dn.net/?f=5-21%2B3-4" />

→ <img src="https://tex.z-dn.net/?f=-17" /> la segunda

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B18%7D%7B%2812-3%29%2816%2B4%2A2%29%7D" />

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B18%7D%7B9%2816%2B8%29%7D%20" />

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B18%7D%7B9%2A24%7D%20" />

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B18%7D%7B216%7D%20" />

aqui simplificamos y nos dara

→ <img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B1%7D%7B12%7D%20" /> la tercera

<img src="https://tex.z-dn.net/?f=%20%5Cfrac%7B5%7D%7B5%7D%20-%20%20%5Cfrac%7B2%7D%7B2%7D%20-%20%20%5Cfrac%7B10%7D%7B3%2A5-5%7D%20" />

[img = 10]

[img = 11]

[img = 12]

→ [img = 13]

espero sirva™.