Question

89 * (b + 13) = 7120​

Answer 1

89 * (b + 13) = 7120

b + 13 = 7120/89

b + 13 = 80

b = 80 - 13

b = 67

Ответ: b = 67

Answer 2

Ответ:

89(b+13)=7120

b+13=7120:89

b+13=80

b=80-13

b=67