Question

1)b/4=80-45
2)m×80=539+21
3)450:(r-8)=3
Решите пожалуйста

Answer 1

1) b = 35*4 
    b = 140

2) m = 560/80 = 7

3) 450 = 3(r-8)
    450 = 3r-24
    474 = 3r
        r  = 158

Answer 2

b/4=35
b=35*4
b=140

m*80=560
m=560:80
m=7

450:3=r-8
150=r-8
r=150+8
r=158