x uchun yechish
x=\frac{7-3y}{2}
y uchun yechish
y=\frac{7-2x}{3}
Grafik
Baham ko'rish
Klipbordga nusxa olish
y=\frac{7}{3}-\frac{2}{3}x
\frac{7}{3}-\frac{2}{3}x natijani olish uchun 7-2x ning har bir ifodasini 3 ga bo‘ling.
\frac{7}{3}-\frac{2}{3}x=y
Tomonlarni almashtirib, barcha oʻzgaruvchi shartlar chap tomonga oʻtkazing.
-\frac{2}{3}x=y-\frac{7}{3}
Ikkala tarafdan \frac{7}{3} ni ayirish.
\frac{-\frac{2}{3}x}{-\frac{2}{3}}=\frac{y-\frac{7}{3}}{-\frac{2}{3}}
Tenglamaning ikki tarafini -\frac{2}{3} ga bo'lish, bu kasrni qaytarish orqali ikkala tarafga ko'paytirish bilan aynidir.
x=\frac{y-\frac{7}{3}}{-\frac{2}{3}}
-\frac{2}{3} ga bo'lish -\frac{2}{3} ga ko'paytirishni bekor qiladi.
x=\frac{7-3y}{2}
y-\frac{7}{3} ni -\frac{2}{3} ga bo'lish y-\frac{7}{3} ga k'paytirish -\frac{2}{3} ga qaytarish.
y=\frac{7}{3}-\frac{2}{3}x
\frac{7}{3}-\frac{2}{3}x natijani olish uchun 7-2x ning har bir ifodasini 3 ga bo‘ling.
Misollar
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