Löse die folgenden linearen Gleichungen ax + b = cx + d

3x + 4 = 9x + 28
 x = -4
9x - 12 = 8x - 8
 x = 4
7x + 9 = 5x + 29
 x = 10
3x - 1 = -6x + 44
 x = 5
x + 2 = 9x + 2
 x = 0
-7x + 6 = 6x + 71
 x = -5
7x - 8 = 8x - 17
 x = 9
7x + 13 = 5x - 7
 x = -10
-x - 23 = 2x - 5
 x = -6
3x + 7 = -4x + 42
 x = 5
10x + 6 = 6x - 30
 x = -9
8x + 9 = 2x + 45
 x = 6
10x - 99 = -2x - 3
 x = 8
3x + 31 = 7x - 9
 x = 10
9x - 13 = 3x - 7
 x = 1
-7x + 10 = x - 62
 x = 9
-6x + 10 = 5x - 23
 x = 3
2x + 4 = -4x + 46
 x = 7
-6x - 62 = 2x - 6
 x = -7
-9x + 3 = 3x - 45
 x = 4