1.
2x - 3 = 7 | + 3
2x = 10 | :2
x = 5
2.
6 + 3x = 3 | - 6
3x = -3 | : 3
x = -1
3.
- 4x - 2 = 8 | + 2
-4x = 10 | | (-4)
x = -2,5
4.
5x = x - 12 | -x
4x = -12 | :4
x = -3
5.
3x = 2x + 7 | - 2x
x = 7
6.
4x = 6x -2 | -6x
-2x = -2 | : (-2)
x = 1
7.
3x + 2 = x+6 | -2
3x = x+ 8 | -x
2x = 8 | : 2
x = 4
8.
2x - 4 = x +8 | + 4
2x = x + 12 | -x
x = 12
9.
7x + 5 = -3x + 15 | -5
7x = -3x + 10 | +3x
10x = 10 | : 10
x = 1
Mam nadzieję, że pomogłam :)
