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Scrieti 5 exercitii cu paranteze rotunde, patrate, si acolade. Rezolvate. Va rog mult ! Dau coroana, punce, multumiri si stelute

Răspuns :

1.[(124+150-x):6]:31-2=0
2.128-[48+6ori 7-(x:3+15)]:3=104
3.[(124+150-x):6]:31-2=0
4.
 [(124+150-x):6] :31=2 
5.
 [(274-x):6]:31=2