Question

решите уравнения (327х-5295)/57=389                                     (27х+11)*315=11970    решите пожалуйста

Answer 1

( 327х - 5 295 ) : 57 = 389

327х - 5 295 =389 * 57

327х - 5 295 =22 173

327х =22 173 +5 295

327х =27 468

х =27 468 : 327

х =84

проверка:

( 327 *84 - 5 295) : 57 = 389

 

( 27х +11) *315 =11 970

27х +11= 11 970 : 315

27х +11 =38

27х=38 - 11 

27х =27

х =27 :27 

х=1

проверка: 

( 27 * 1 +11) *315= 11 970

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