1) x + 3/65 = 4/13x = 4/13 - 3/65x = 20/65 - 3/65x = 17/65
2) 7/x + 4 = 21/607/x = 21/60 - 47/x = 21/60 - 240/607/x = -219/60x = -60/219x = -20/73
3) 5x - 8/5 + 18/455x = 8/5 - 18/455x = 72/45 - 18/455x = 54/45x = 54/45 * 1/5x = 54/225x = 6/25
1) x + 3/65 = 4/13
x = 4/13 - 3/65
x = 20/65 - 3/65
x = 17/65
2) 7/x + 4 = 21/60
7/x = 21/60 - 4
7/x = 21/60 - 240/60
7/x = -219/60
x = -60/219
x = -20/73
3) 5x - 8/5 + 18/45
5x = 8/5 - 18/45
5x = 72/45 - 18/45
5x = 54/45
x = 54/45 * 1/5
x = 54/225
x = 6/25