what is the solution set for 8x-9=11x+12
8x-9=11x+128x-11x-9=12-3x-9=12-3x=12+9-3x=21x=21/-3x=-7
8x - 9 = 11x + 12-8x -8x -9 = 3x + 12 -12 -12 -21 = 3x 3 3 -7 = x