Question

Решите уравнения.
(x+357)-269=491
(x+357)-307=491
(x+357)-288=491
(x+357)-326=491

Answer 1

(х+357)=491+269
х+357=760
х=760-357
х=403

(х+357)=491+307
х+357=798
х=798-357
х=441

(х+357)=491+288
х+357=779
х=779-357
х=442

(х+357)=491+326
х+357=817
х=817-357
х=460