x uchun yechish
x=\frac{3}{7}\approx 0,428571429
Grafik
Baham ko'rish
Klipbordga nusxa olish
-\left(x-3\right)=2\times 3x
x qiymati -1 teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini 2\left(x+1\right) ga, 2x+2,x+1 ning eng kichik karralisiga ko‘paytiring.
-x+3=2\times 3x
x-3 teskarisini topish uchun har birining teskarisini toping.
-x+3=6x
6 hosil qilish uchun 2 va 3 ni ko'paytirish.
-x+3-6x=0
Ikkala tarafdan 6x ni ayirish.
-7x+3=0
-7x ni olish uchun -x va -6x ni birlashtirish.
-7x=-3
Ikkala tarafdan 3 ni ayirish. Har qanday sonni noldan ayirsangiz, o‘zining manfiyi chiqadi.
x=\frac{-3}{-7}
Ikki tarafini -7 ga bo‘ling.
x=\frac{3}{7}
Ikkala surat va maxrajdan manfiy belgini olib tashlash bilan \frac{-3}{-7} kasrini \frac{3}{7} ga soddalashtirish mumkin.
Misollar
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