Ответ:
(х+65)*10=1220
х+65=1220:10
х+65=122
х=122-65
х=57
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Ответ:
(х+65)*10=1220
х+65=1220:10
х+65=122
х=122-65
х=57
х+65=1220:10
х+65=122
х=122-65
х=57