03 Íàéäèòå çíà÷åíèå âûðàæåíèÿ  `+`(`*`(420, `*`(`+`(-`/`(1, 3), `/`(6, 7))))). 

ÐÅØÅÍÈÅ 

 

420*(-1/3+6/7)
http://www.wolframalpha.com/input/?i=420*%28-1%2F3%2B6%2F7%29 

ÎÒÂÅÒ 

220