Question

Найдите корень уравнения
(x+7,2)*4,2=30,996

Answer 1

х+7.2=30,996:4.2
х+7.2=7,38
х=7,38-7.2
х=0.18
проверка
0.18+7.2)*4.2=30.996
    7.38*4.2=30,996
    30,996+30.996