3x + 5 = 17 <em>subtract 5 from both sides</em>
3x = 12 <em>divide both sides by 3</em>
x = 4
3x + 14 = 11 <em>subtract 14 from both sides</em>
3x = -3 <em>divide both sides by 3</em>
x = -1
x = 18 1/3
x - 20 + 2x = 35
- 20 + 3x = 35
3x = 35 + 20
3x = 55
x = 55/3
"55 is correct answer".
Hope this helps!
Thanks!
-Charlie