x uchun yechish
x = \frac{44}{7} = 6\frac{2}{7} \approx 6,285714286
Grafik
Baham ko'rish
Klipbordga nusxa olish
\left(x-2\right)\times 240=\left(x+4\right)\times 100
x qiymati -4,2 qiymatlaridan birortasiga teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini \left(x-2\right)\left(x+4\right) ga, x+4,x-2 ning eng kichik karralisiga ko‘paytiring.
240x-480=\left(x+4\right)\times 100
x-2 ga 240 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
240x-480=100x+400
x+4 ga 100 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
240x-480-100x=400
Ikkala tarafdan 100x ni ayirish.
140x-480=400
140x ni olish uchun 240x va -100x ni birlashtirish.
140x=400+480
480 ni ikki tarafga qo’shing.
140x=880
880 olish uchun 400 va 480'ni qo'shing.
x=\frac{880}{140}
Ikki tarafini 140 ga bo‘ling.
x=\frac{44}{7}
\frac{880}{140} ulushini 20 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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