Question

реши уравнение (350:b+10)*7=560

Answer 1

(350:b+10)*7=560

350:b+10=560:7

350:b+10=80-10

350:b=70

b=350:70

b=5

Ответ: 5.

Answer 2

(350:b+10)*7=560

350:b+10=560:7

350:b+10=80-10

350:b=70

b=350:70

b=5

проверка:

(350:5+10)*7=560

(70+10)*7=560

80*7=560

560=560