Предмет: Математика, автор: LibraffTop4ik

Решите уравнения:
1)8x-3x+43=108
2)9y+2y-19=102
3)14x-7x-42=21
4)8y-3y+7y=156

Ответы

Автор ответа: Enimelia

14

1)8x-3x+43=108

5х=108-43

х=65:5

х=13

2)9y+2y-19=102

11у=102+19

у=121:11

у=11

3)14x-7x-42=21

7х=21+42

х=63:7

х=9

4)8y-3y+7y=156

у=156:12

у=13

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