9×(9x-13)=153
9 * x - 13 = 153/9; 9 * x - 13 = 17
9 * x = 17 + 13; 9 * x = 30; x = 30/9; x = 3 * 10/(3 * 3); x = 10/3
9×(9x-13)=153
9 * x - 13 = 153/9; 9 * x - 13 = 17
9 * x = 17 + 13; 9 * x = 30; x = 30/9; x = 3 * 10/(3 * 3); x = 10/3