Odpowiedź :
Zadanie
4(y - 3) - 3(x + 1) = 4y - 12 - 3x - 3 = -3x + 4y - 15
x = 4, y = 2
-3 · 4 + 4 · 2 - 15 = -12 + 8 - 15 = -19
4(2 - 3) - 3(4 + 1) = 4 · (-1) - 3 · 5 = -4 - 15 = -19
Zadanie
4(y - 3) - 3(x + 1) = 4y - 12 - 3x - 3 = -3x + 4y - 15
x = 4, y = 2
-3 · 4 + 4 · 2 - 15 = -12 + 8 - 15 = -19
4(2 - 3) - 3(4 + 1) = 4 · (-1) - 3 · 5 = -4 - 15 = -19