Предмет: Алгебра, автор: Sima567

-3(-2+5х)=9 помогите пожалуйста, я не понимаю

Ответы

Автор ответа: Solнышко
1
Открываем скобки
-3*(-2) -3*5х=9
6-15х=9
-15х= 9-6
-15х= 3
х= 3 : (-15)
х = - 1/5 = - 0,2
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