Автор - Vikavukusik2001

Решите уравнение. -7х + 9(2+х) = -4х + 3

Ответ

Автор - owlj
-7х + 9(2+х) = -4х + 3
-7х+18+9х=-4х+3
-7х+9х+4х=3-18
6х=-15
х=-2.5

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