5x + 8 = 15x = 1 - 85x = -7x = -7/5
20/x - 4 = 1620/x = 16 + 420/x = 20x = 1
17 - 5x = 2-5x = 2 - 17-5x = -15x = 3
21 + 3/x = 183/x = 18 - 213/x = -3x = -1
5x + 8 = 1
5x = 1 - 8
5x = -7
x = -7/5
20/x - 4 = 16
20/x = 16 + 4
20/x = 20
x = 1
17 - 5x = 2
-5x = 2 - 17
-5x = -15
x = 3
21 + 3/x = 18
3/x = 18 - 21
3/x = -3
x = -1