a) I
x + 2y = 8
II 3x - 2y = 2 b) I 2x + 3y = 24 II 5x - 2y = 3 c) I x - y = 7 II x + y = 5 d) I 2x - 3y = - 2 II 2x + 3y = 5 |
(2,5; 2,75)
(3; 6) (6; -1) (0,75: ) |
a) I
x + y = 3
II 2x + 3y = 4 b) I x + y = 1,5 II 3x - 2y = 2 c) I 2y + 3x = 3 II y - x = 1 d) I 2y + 8x = 5 II -4y + 12x = -3 |
( 5;-2)
(1; 0,5) ( 0,2; 1,2) (0,25; 1,5) |
a) I
2x + 4y = 9 II -x + 2y = 1,5 b) I -3x + 4y = 4 II 8x + 3y = 3 c) I 2x + 7y = 11 II -3x + 2y = -4 d) I 2x + 3y = 1 II x + 5y = 4 |
( 1,5 ; 1,5)
( 0 ;1) ( 2 ; 1) ( -1 ; 1) |