Hej!
5 * x - 3 + 2 * x = 4 * x + 9
5x - 3 + 2x = 4x + 9
5x + 2x - 4x = 9 + 3
3x = 12 / : 3
x = 4
8 * x - 6 - 9 * x = 5 * x - 6
8x - 6 - 9x = 5x - 6
8x - 9x - 5x = -6 + 6
-6x = 0 / : (-6)
x = 0
2 + 4 * x - 1 + 2 * x = -8 + 4 * x - 7
2 + 4x - 1 + 2x = -8 + 4x - 7
4x + 2x - 4x = -8 - 7 - 2 + 1
2x = -16 / : 2
x = -8
-3 + 7 * x - 2 = 3 * x - 11 + 6 * x
-3 + 7x - 2 = 3x - 11 + 6x
7x - 3x - 6x = -11 + 3 + 2
-2x = -6 / : (-2)
x = 3
4 + 5 * x - 2 = 7 * x - 7
4 + 5x - 2 = 7x - 7
5x - 7x = -7 - 4 + 2
-2x = -9 / : (-2)
x = 4,5
-8 + 7 * x + 3 = 5 * x + 4 + 4 * x + 5
-8 + 7x + 3 = 5x + 4 + 4x + 5
7x - 5x - 4x = 4 + 5 + 8 - 3
-2x = 14 / : (-2)
x = -7
5 * x + 3 - x = 14
5x + 3 - x = 14
5x - x = 14 - 3
4x = 11 / : 4
x = 2¾
3 * x - 7 + 5 * x = 2 + 10 * x
3x - 7 + 5x = 2 + 10x
3x + 5x - 10x = 2 + 7
-2x = 9 / : (-2)
x = -4,5
Pozdrawiam! - Julka
