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Автор - hail1

найдите корень уравнения ( х5 ) -2 = (х-86)/25

Ответ

Автор - Лексия
 frac{x}{5} -2= frac{x-86}{25}  \ <br />
 frac{x-10}{5} = frac{x-86}{25} \ <br />
(x-10)*25=(x-86)*5 \ <br />
25x-250=5x-430 \ <br />
20x=-180 \ <br />
x=-9<br />

Ответ

Автор - korolevichna07
(х/5) - 2 = (х - 86) / 25
(х - 10) / 5 = (х -86)) / 25
25(х - 10) = 5(х - 86)
25х - 250 = 5х - 430
25х - 5х = 250 - 430
20х = - 180
х = - 180 : 20
х = - 9

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