Question

42+2508:(429-5*63)= 
5929:(789-778)=

Answer 1

42+2508:(429-5*63)=64
1)5*63=315
2)429-315=114
3)2508/114=22
4)42+22=64

5929:(789-778)=539
1)789-778=11
2)5929/11=539

Answer 2

Смотри во вложении:
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Answer 3

спс