Răspuns:
[tex]3x-6=3= > 3x=3+6= > x=9:3= > x=3\\\\2x + 24 = 0= > 3x=-24= > x=-24:3= > x=-8\\\\50-2x=10= > -2x=10-50= > x=40:2= > x=20\\\\-11-x+22=-33= > -x=-33+11-22= > -x=-44= > x=44\\\\x-2=-13= > x=-13+2= > x=-11\\\\-20+4x=12= > 4x=12+20= > x=32:4= > x=8[/tex]