Решите уравнение (x+45) - 15=34 (x-56) - 24=17 (x-27) + 35=81 478 - (256+x) = 143 659 - (354-x) = 427 791 - (x-298) = 683

(x+45) - 15=34

x+45=34+15

x=49-45

x=4

(x-56) - 24=17

x-56=17+24

x=41+56

x=97

(x-27) + 35=81

x-27=81-35

x=46+27

x=73

478 - (256+x) = 143

-256-x=143-478

-x=-335+256

x=79

659 - (354-x) = 427

-354+x=427-659

x=-232+354

x=122

791 - (x-298) = 683

-x+298=683-791

-x=-108-298

x=406