Question

Помогите пожалуйста!!!!!!!!!!!

Answer 1

3.557+х:2=4
1.7785+х=4
х=4-1.7785
х=2.2215

Answer 2

1) (3,557+x)/2=4

3,557+x=4*2

x=8-3,557

x=4,443

3) (12,392+x)/5=2,365+2,365

(12,392+x)/5=4,73

12,392+x=4,73*5

x=23,65-12,392

x=11,258