Question

27х-14х+38+15х=990
Решите уравнение

Answer 1

(27-14+15)x=990-38
28x=952
x=952:28
x=34

Answer 2

27х-14х+38+15х=990
(27+(15-14))х+38=990
(27+1)х+38=990
28х+38=990
28х=990-38
28х=952
х=952:28
х=34
Проверка:
28*34+38=990
   952+38=990
         990=990
Ответ:34