Zadania są w załącznikach . :D Dam naj , trzeba uporządkować i rozwiążać układy równań. :)
a) x + 4y + 2 = 2x + 3y + 6
3 - x + 2y = 1 - 3x - 2y
- x + y = 4
2x + 4y = - 2 / : 2
x + 2y = - 1
3y = 3
y = 1
- x + 1 = 4
- x = 3
x = - 3
b) 3x - 4y + 6 = x - 3y + 7
4 - x - y = 2x - 2y + 1
2x - y = 1
- 3x + y = - 3
- x = - 2
x = 2
4 - y = 1
- y = - 3
y = 3
c) 6 - 2x - y = x + 2y - 3
- 4x + 3y + 1 = x + y + 4
- 3x - 3y = - 9 / : (-3)
- 5x + 2y = 3
x + y = 3 / · (-2)
- 2x - 2y = - 6
- 7x = - 3
x = 3/7
3/7 + y = 3
y = 18/7
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a) x + 4y + 2 = 2x + 3y + 6
3 - x + 2y = 1 - 3x - 2y
- x + y = 4
2x + 4y = - 2 / : 2
- x + y = 4
x + 2y = - 1
3y = 3
y = 1
- x + 1 = 4
- x = 3
x = - 3
b) 3x - 4y + 6 = x - 3y + 7
4 - x - y = 2x - 2y + 1
2x - y = 1
- 3x + y = - 3
- x = - 2
x = 2
4 - y = 1
- y = - 3
y = 3
c) 6 - 2x - y = x + 2y - 3
- 4x + 3y + 1 = x + y + 4
- 3x - 3y = - 9 / : (-3)
- 5x + 2y = 3
x + y = 3 / · (-2)
- 5x + 2y = 3
- 2x - 2y = - 6
- 5x + 2y = 3
- 7x = - 3
x = 3/7
3/7 + y = 3
y = 18/7