x uchun yechish
x=-\frac{4}{15}\approx -0,266666667
Grafik
Baham ko'rish
Klipbordga nusxa olish
7\times \frac{6\times 3+2}{3}+7x\left(-8\right)=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
x qiymati 0 teng bo‘lmaydi, chunki nolga bo‘lish mumkin emas. Tenglamaning ikkala tarafini 7x ga, x,7 ning eng kichik karralisiga ko‘paytiring.
7\times \frac{18+2}{3}+7x\left(-8\right)=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
18 hosil qilish uchun 6 va 3 ni ko'paytirish.
7\times \frac{20}{3}+7x\left(-8\right)=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
20 olish uchun 18 va 2'ni qo'shing.
\frac{7\times 20}{3}+7x\left(-8\right)=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
7\times \frac{20}{3} ni yagona kasrga aylantiring.
\frac{140}{3}+7x\left(-8\right)=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
140 hosil qilish uchun 7 va 20 ni ko'paytirish.
\frac{140}{3}-56x=-42\times \frac{5}{7}\times 7x+7x\left(-3\right)
-56 hosil qilish uchun 7 va -8 ni ko'paytirish.
\frac{140}{3}-56x=\frac{-42\times 5}{7}\times 7x+7x\left(-3\right)
-42\times \frac{5}{7} ni yagona kasrga aylantiring.
\frac{140}{3}-56x=\frac{-210}{7}\times 7x+7x\left(-3\right)
-210 hosil qilish uchun -42 va 5 ni ko'paytirish.
\frac{140}{3}-56x=-30\times 7x+7x\left(-3\right)
-30 ni olish uchun -210 ni 7 ga bo‘ling.
\frac{140}{3}-56x=-210x+7x\left(-3\right)
-210 hosil qilish uchun -30 va 7 ni ko'paytirish.
\frac{140}{3}-56x=-210x-21x
-21 hosil qilish uchun 7 va -3 ni ko'paytirish.
\frac{140}{3}-56x=-231x
-231x ni olish uchun -210x va -21x ni birlashtirish.
\frac{140}{3}-56x+231x=0
231x ni ikki tarafga qo’shing.
\frac{140}{3}+175x=0
175x ni olish uchun -56x va 231x ni birlashtirish.
175x=-\frac{140}{3}
Ikkala tarafdan \frac{140}{3} ni ayirish. Har qanday sonni noldan ayirsangiz, o‘zining manfiyi chiqadi.
x=\frac{-\frac{140}{3}}{175}
Ikki tarafini 175 ga bo‘ling.
x=\frac{-140}{3\times 175}
\frac{-\frac{140}{3}}{175} ni yagona kasrga aylantiring.
x=\frac{-140}{525}
525 hosil qilish uchun 3 va 175 ni ko'paytirish.
x=-\frac{4}{15}
\frac{-140}{525} ulushini 35 ni chiqarib, bekor qilish hisobiga eng past shartlarga kamaytiring.
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