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Seele25
@Seele25
June 2022
2
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Найдите корень уравнения [tex] \frac{7}{x+8} = -1[/tex]
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Samarakano
7-x+8+1=0
7+x+8/x+8=0
x=7+8
x=15
0 votes
Thanks 0
KPOOBb
при подстановке не получается верное равенство
Samarakano
Да, я ошибся там -15
KPOOBb
X+8 не = 0,т.е. x не =-8
x+8=-7
x=-7-8
x=-15
1 votes
Thanks 1
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Answers & Comments
7+x+8/x+8=0
x=7+8
x=15
x+8=-7
x=-7-8
x=-15