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x uchun yechish
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15x-20=6x-x-2-x+3
x+2 teskarisini topish uchun har birining teskarisini toping.
15x-20=5x-2-x+3
5x ni olish uchun 6x va -x ni birlashtirish.
15x-20=5x+1-x
1 olish uchun -2 va 3'ni qo'shing.
15x-20-5x=1-x
Ikkala tarafdan 5x ni ayirish.
10x-20=1-x
10x ni olish uchun 15x va -5x ni birlashtirish.
10x-20+x=1
x ni ikki tarafga qo’shing.
11x-20=1
11x ni olish uchun 10x va x ni birlashtirish.
11x=1+20
20 ni ikki tarafga qo’shing.
11x=21
21 olish uchun 1 va 20'ni qo'shing.
x=\frac{21}{11}
Ikki tarafini 11 ga bo‘ling.