Решите уравнение (38+б)•12=840 14(р-30)=630 (43-с)•17=289. Created by DaryaLapp. matematika-ru

Решите уравнение (38+б)•12=840 14(р-30)=630 (43-с)•17=289...

DaryaLapp @DaryaLapp

June 2022 1 5 Report

Решите уравнение
(38+б)•12=840
14(р-30)=630
(43-с)•17=289

Answers & Comments

ivawka2006

(38+b)*12=840

38+b=840:12

38+b=70

b=70-38

b=32

14(p-30)=630

14p-420=630

14p=630+420

14p=1050

p=1050:14

p=75

(43-c)*17=289

43-c=289:17

43-c=17

c=43-17

c=26

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