………………………………..............
5x - 6y = 1
3x + 4y = 12
4y = -3x + 12
y = -0,75x +3
5x - 6(-0,75x + 3) = 1
5x + 4,5x - 18 = 1
9,5x = 19
x = 2
6 + 4y = 12
y = 1,5
ответ:(2; 1,5)
………………………………..............
5x - 6y = 1
3x + 4y = 12
5x - 6y = 1
4y = -3x + 12
5x - 6y = 1
y = -0,75x +3
5x - 6(-0,75x + 3) = 1
5x + 4,5x - 18 = 1
9,5x = 19
x = 2
6 + 4y = 12
y = 1,5
ответ:(2; 1,5)