Предмет: Математика, автор: Paniklu

7х+9/2,5=5x-2/6,
42х+54=12,5х-5
42х-12,5х= -54-5
29,5х= - 59
х= - 59 :29,5
х= -2
Можете объяснить все действия данного уровнения

tatsach: Привели к общему знаменателю 15, затем неизвестное влево, известное вправо

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Автор ответа: tatsach

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7х+9/2,5=5x-2/6, 42х+54=12,5х-5 42х-12,5х= -54-5 29,5х= - 59 х= - 59 :29,5 х= -2 Можете объяснить все действия данного уровнения

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7х+9/2,5=5x-2/6,
42х+54=12,5х-5
42х-12,5х= -54-5
29,5х= - 59
х= - 59 :29,5
х= -2
Можете объяснить все действия данного уровнения