n uchun yechish
n=-29
Baham ko'rish
Klipbordga nusxa olish
\frac{2-28+7-n}{-7}=-\frac{10}{7}
Ikki tarafini 7 ga bo‘ling.
2-28+7-n=-\frac{10}{7}\left(-7\right)
Ikkala tarafini -7 ga ko‘paytiring.
-26+7-n=-\frac{10}{7}\left(-7\right)
-26 olish uchun 2 dan 28 ni ayirish.
-19-n=-\frac{10}{7}\left(-7\right)
-19 olish uchun -26 va 7'ni qo'shing.
-19-n=\frac{-10\left(-7\right)}{7}
-\frac{10}{7}\left(-7\right) ni yagona kasrga aylantiring.
-19-n=\frac{70}{7}
70 hosil qilish uchun -10 va -7 ni ko'paytirish.
-19-n=10
10 ni olish uchun 70 ni 7 ga bo‘ling.
-n=10+19
19 ni ikki tarafga qo’shing.
-n=29
29 olish uchun 10 va 19'ni qo'shing.
n=-29
Ikkala tarafini -1 ga ko‘paytiring.
Misollar
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