x uchun yechish
x=51
Grafik
Baham ko'rish
Klipbordga nusxa olish
30x+80\left(0-12-x\right)=\left(12-x\right)\times 90
0 hosil qilish uchun 0 va 6 ni ko'paytirish.
30x+80\left(-12-x\right)=\left(12-x\right)\times 90
-12 olish uchun 0 dan 12 ni ayirish.
30x-960-80x=\left(12-x\right)\times 90
80 ga -12-x ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-50x-960=\left(12-x\right)\times 90
-50x ni olish uchun 30x va -80x ni birlashtirish.
-50x-960=1080-90x
12-x ga 90 ni ko'paytirish orqali distributiv xususiyatdan foydalanish.
-50x-960+90x=1080
90x ni ikki tarafga qo’shing.
40x-960=1080
40x ni olish uchun -50x va 90x ni birlashtirish.
40x=1080+960
960 ni ikki tarafga qo’shing.
40x=2040
2040 olish uchun 1080 va 960'ni qo'shing.
x=\frac{2040}{40}
Ikki tarafini 40 ga bo‘ling.
x=51
51 ni olish uchun 2040 ni 40 ga bo‘ling.
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