Question

2020-10:[4-4:(8-x•2)]+21=2036

Answer 1

2020-10:[4-4:(8-x×2)]+21=2036

2020-10:[4-4:(8-x×2)]=2036-21

2020-10:[4-4:(8-x×2)]=2015

10:[4-4:(8-x×2)]=2020-2015

10:[4-4:(8-x×2)]=5

4-4:(8-x×2)=10:5

4-4:(8-x×2)=2

4:(8-x×2)=4-2

4:(8-x×2)=2

8-x×2=4:2

8-x×2=2

x×2=8-2

x×2=6

x=6:2

x=3

Answer 2

Răspuns:

Explicație pas cu pas:

2020-10:[4-4:(8-x•2)]+21=2036

10:[4-4:(8-x•2)] = 2020+ 21 - 2036 = 5

4-4:(8-x•2) = 10 : 5 = 2

4:(8-x•2) = 4 - 2 = 2

8-x•2 = 4 : 2 = 2

x•2 = 8 - 2 = 6

x = 6 : 2 = 3