Предмет: Математика, автор: zojagoro

1) (130-Х)+35=50 помогите решить

2) (y+87)-130=200 помогите решить

3) 50 - (х+3) =20 помогите решить

4) (97+у) +38=150 помогите решить

спасибо

Ответы

Автор ответа: Анна12353278
0
1) 130-х+35=50
    -х=50-35-130
    -х=-115 (* -1)
     х=115
2)  у+87-130=200
     у=200-87+130
     у=243

3)50-х-3=20
-х=20+3-50
-х=-27 (* -1)
х=27
 
4)97+у+38=150
у=150-38-97
у=15
Автор ответа: Анна12353278
0
10
Автор ответа: Sofyapet
0
А я в 11
Автор ответа: sssdiman
0
1)(130-Х)+35=50
  130-Х=15
  Х=130-15
  X=115
2)(y+87)-130=200
    y+87=330
    y=330-87
    y=143
3)50 - (х+3) =20
   x+3=30
   x=30-3
   x=27
4)(97+у)+38=150
    97+y=112
    y=112-97
    y=15
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