A) Start by distributing 6 to (2x-11). Next with 12x-66+15=3x+12 combine like terms so you would have, 12x-51=3x+12. Next take -51 and add it to 12 on the other side. Then with 12x=3x+63 take 3x and subtract it from 12x. Then with 9x=63 divide by 9, and that gives you x=7.
