Уравнение при X=0 48:(12+x)= 2) ghb x= -12 , 3) при x=36

Пошаговое объяснение:

1)

Если х=0, то 48:(12+0)=48:12=4

2)

Если х=-12, то 48:(12+(-12))=48:0=0

3)

Если х=36, то 48:(12+36)=48:48=1

1)12.48

2)0

3)48

Пошаговое объяснение:

1)12+0.48=12.48

2)12+(-12)=0

3)12+36=48

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Пошаговое объяснение:

1 полка = х

2 полка = у

х + у = 1056

х - 130 = у + 130

х + у = 1056

х - у = 130 + 130

х + у = 1056

х - у = 260

Решим систему методом сложения:

2х = 1316

х + у = 1056

1)

2х = 1356

х = 1356 : 2

х = 658

2)

х + у = 1056

658 + у = 1056

у = 1056 - 658

у = 398

1 полка = (х) = 658 книг

2 полка = (у) = 398 книг

1) 658 + 398 = 1056 (книг) - на двух полках

2) 658 - 130 = 528 (книг) - станет на 1 полке, когда заберут с неё 130 книг

3) 398 + 130 = 528 (книг) - станет на 2 полке, когда поставят на неё 130 книг

ответ: 658 книг; 398 книг