Предмет: Алгебра, автор: olya2931

ПОМОГИТЕ ПОЖАЛУЙСТА!!
Найдите,чему равен параметр р,если выражения -2(р-3х) и 7х+3 имеют одинаковое значение при х= -13

Ответы

Автор ответа: wejde

1

-2(p-3x) и 7x+3
Найдем чему равно выражение (7x+3) при x=-13:
7x+3=7*(-13)+3=-91+3=-88
Так как выражения имею одинаковое значение при х=-13, то найдем р:
-2(p-3x)=-88/:(-2)
p-3x=44
p=44+3x
p=44+3*(-13)
p=44-39
p=5
Ответ: p=5

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