Odpowiedź :
Odpowiedź:
A) x = - 3 ; y = 1/2
-x - 4y + 2 = -(-3) - (4 * 1/2) + 2 = 3 - 2 + 2 = 3
B) x = - 2 ; y = - 3/5
2y - 5x - 5 = 2 * (-3/5) - 5 = 2 * (-3/5) - 5 * ( -2) - 5 = - 6/5 + 10 - 5 = - 6/5 + 5 =
- 1 1/5 + 5 = - 1 1/5 + 4 5/5 = 3 4/5
Odpowiedź:
A) x = - 3 ; y = 1/2
-x - 4y + 2 = -(-3) - (4 * 1/2) + 2 = 3 - 2 + 2 = 3
B) x = - 2 ; y = - 3/5
2y - 5x - 5 = 2 * (-3/5) - 5 = 2 * (-3/5) - 5 * ( -2) - 5 = - 6/5 + 10 - 5 = - 6/5 + 5 =
- 1 1/5 + 5 = - 1 1/5 + 4 5/5 = 3 4/5