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11YaNa11
@11YaNa11
August 2022
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решите уравнение -х+4+(х-5)=-2(-2-х)+5
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Verified answer
решите уравнение -х+4+(х-5)=-2(-2-х)+5
-х+4+х-5=4+2х+5
2x=-10 x=-5
проверка
-(-5)+4+((-5)-5)=-2·(-2-
(-5)
)+5
5+4-5-5=-2(-2+5)+5
-1= -2·(3)+5
-1=-1 верно
ответ: x=-5
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Verified answer
решите уравнение -х+4+(х-5)=-2(-2-х)+5-х+4+х-5=4+2х+5
2x=-10 x=-5
проверка
-(-5)+4+((-5)-5)=-2·(-2-(-5))+5
5+4-5-5=-2(-2+5)+5
-1= -2·(3)+5
-1=-1 верно
ответ: x=-5