Автор - anton2002z73

Упростить выражения 9(x-5)-(3-2x), 9+2(4х-y)-3(y+5x),

Ответ

Автор - 1401Tamara
9(x-5)-(3-2x) = 9x - 45 - 3 + 2x = 11x - 48

 9+2(4х-y)-3(y+5x) = 9 + 8x -2y -3y -15x =  9 - 7x - 5y

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