Предмет: Алгебра, автор: AleksManya

решите уравнение 2(x+3)-3(2-7x)=2(x-2)

fatima1045: _ - это минус? или что?

Ответы

Автор ответа: fatima1045

8

2x+6-6+21x=2x-4
2x+21x+6-6=2x-4
2x+21x-2x=-4
21x=-4

x=5,25 либо x=-4/21

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