2/3(x -1) + 1/4x = 10
2/(3x - 3) + 1/4x = 10 distribute the 3
2(4x) + (3x - 3) / 4x(3x-3) get a common denominator (the bottom) multiply the 2 by 4x and the 1 by 3x - 3
8x +3x - 3/ 12x(x - 1) multiply the 2 * 4x and reduce 3x - 3 by 3
11x - 3 / 12x(x-1)