z uchun yechish
z = \frac{61}{35} = 1\frac{26}{35} \approx 1,742857143
Baham ko'rish
Klipbordga nusxa olish
35z+30=7\left(2\times 5+3\right)
Tenglamaning ikkala tarafini 35 ga, 7,5 ning eng kichik karralisiga ko‘paytiring.
35z+30=7\left(10+3\right)
10 hosil qilish uchun 2 va 5 ni ko'paytirish.
35z+30=7\times 13
13 olish uchun 10 va 3'ni qo'shing.
35z+30=91
91 hosil qilish uchun 7 va 13 ni ko'paytirish.
35z=91-30
Ikkala tarafdan 30 ni ayirish.
35z=61
61 olish uchun 91 dan 30 ni ayirish.
z=\frac{61}{35}
Ikki tarafini 35 ga bo‘ling.
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