Question

Решите плиз
(38+b)*12=840
14*(p-30)=630
(43-s)*17=289

Answer 1

(38+b)*12=840
38+b=840:12
38+b=70
b=70-38
b=32

14*(p-30)=630
р-30=630:14
р-30=45
р=45+30
р=75

(43-s)*17=289
43-s=289:17
43-s=17
s=43-17
s=26

Answer 2

38+b=840:12
38+b=70
b=60-38
b=22