5+14a=9a-5 Subtract 9a to each side 5+14a-9a=9a-5-9a 5+5a=-5 Subtract 5 to each side 5+5a-5=-5- 5a=-10 Divided 5 to each side 5a/5=-10/5 a=-2 Check: Substitute a with -2 5+14a=9a-5 5+14(-2)=9(-2)-5 5-28=-18-5 -23=-23. As a result, x=-2. Hope it help!
