Question

A) (90 · b + 60) : 3 = 80

Answer 1

Ответ:

b=2

Пошаговое объяснение:

A) (90*b + 60):3 = 80

(90*b+60):3 = 80

(90*b+60)=80*3

90b+60=240

90b=240-60

90b=180

b=180:90

b=2

проверим:

(90*b + 60):3 = 80

(90*2 + 60):3 = 80

(180+60):3=80

240:3=80

80=80

Answer 2

To solve the equation (90b + 60) ÷ 3 = 80 for the variable "b," you can follow these steps:

1. Start by simplifying the left side of the equation: (90b + 60) ÷ 3 = 30b + 20

2. Now, the equation becomes: 30b + 20 = 80

3. Next, subtract 20 from both sides of the equation to isolate the term with "b": 30b + 20 - 20 = 80 - 20 30b = 60

4. Finally, divide both sides by 30 to solve for "b": 30b / 30 = 60 / 30 b = 2

So, the solution to the equation (90b + 60) ÷ 3 = 80 is b = 2.