Kungani indlela yokuhlukanisa nesilinganiso yokubala izimpande zesikwele isebenza?
Indlela yokuhlukanisa nesilinganiso yokubala izimpande zesikwele iqala ngokuqagela impande yesikwele. Ngokwesibonelo, ukuze sibale impande yesikwele ka-8, singase siqale ngo-3, njengoba sazi ukuthi u-9 uyisikwele sika-3. Njengoba kunikezwe ukuqagela, indlela iyindlela yokukhiqiza ukuqagela okulandelayo. Le fomula ithi ukuqagela okulandelayo kufanele kube isilinganiso sokuqagela kwamanje nesikwele (inombolo ofuna ukubala ngayo impande yesikwele) ehlukaniswe ngokuqagela. Ukubuyela esibonelweni sethu, ukuqagela okulandelayo ukuthi (3 + 8/3) / 2 = 17/6. Ukusebenzisa le ndlela ngokuphindaphindiwe kunikeza ukuqagela okusondela ngokwengeziwe emsuka wesikwele wangempela.  Isizathu sokuthi lokhu kusebenze ukuthi umkhawulo wokulandelana kokuqagela okwenziwa yileli fomula uyimpande eyisikwele. Ukuze ubone lokhu, okokuqala qaphela ukuthi kumkhawulo, ukuqagela okulandelayo kufanele kulingane nokuqagela kwamanje. Ukuqagela kuya ngokuya kusondelana kuze kube yilapho, ngemva kwenani elingenamkhawulo lezinyathelo, sekufana. Ukusebenzisa i-X ehlukile ukumela umkhawulo nokusebenzisa ifomula kunikeza i-equation engaxazululwa nge-X nge-algebra. Isixazululo siwukuthi u-X kufanele abe yimpande eyisikwele.