a) 3x-5 = 2x+9
3x-2x-5=2x-2x+9
x-5 = 9
x-5+5 = 9+5
x = 14
b) 17x-11 = 18x+14
17x-18x-11 = 18-18 + 14
-1x - 11 +11 = 14 + 11
-1x = 25
x = -25
c) 48x-37 = 13x+13
48x -13x - 37 = 13x-13x + 13
35x - 37 = 13
35x - 37 + 37 = 13 + 37
35x = 50
--- ---
35 35
x = 50/35
d) 7x-13 = 5x+33x
7x-5x-13 = 5x-5x + 33x
2x - 13 = 33x
2x = 33x + 13
2x - 33x = 33x - 33x + 13
-31x = 13
----- ----
-31 -31
x = 13/-31
