Question

b+60,19-(68,7-9,1),еслиb=21,021.

Answer 1

21,021+60,19-(68,7-9,1)=
1) 68,7-9,1=59,6
2) 21,021+60,19=81,211
3) 81,211-59,6=21,611

Answer 2

21,021+60,19-(68,7-9,1)=81,211-59,6=-21,611