Answer :
[tex]x+12-20=14+8 \\\\ x-8=22 \\\\ x=22+8 \\\\ \boxed{x=30}[/tex]
-20+12= -8
14+8=22
we pass 8 with changed signe in the other side of the equal to find x
-20+12= -8
14+8=22
we pass 8 with changed signe in the other side of the equal to find x