Решите уравнение А)а-389=4621 Б)887+х=1201 В)73•у=438 Г)140:t=4

Question

Решите уравнение
А)а-389=4621
Б)887+х=1201
В)73•у=438
Г)140:t=4

Answer 1

A) a-389=4621
a=4621+389
a=5010
Б)887+х=1201
х=1201-887
х=314
В)73•у=438
у=6
Г)140:t=4
t=35

Answer 2

а-389=4621                     73ху=438

                                         у=438:7

а=4621+389                       у=6

а=5010                             73х6=438

5010-389=4621                438=438

                                               

                                            140:т=4

                                             т=140:4

887+х=1201                         т=35

х=1201-887                           140:35=4

887+314=1201                        4=4

1201=1201