Question

589-b=120+125
Пжжжжжжж помогите ❤️​

Answer 1

Ответ:

1). 120+125=245

589-b=245

b=589-245

b=344

Answer 2

Ответ:

$589-b=120+125\\589-b=245\\b=589-245\\b=344\\check:\\589-344=120+125\\245=245\\answer: b=344$