First, we need to get rid of the denominator. to do so, we will simply multiply all terms by 12 (which is the result of 3*4). (3x/4)(12)+(2/3)(12)=(x/3)(12) 9x + 8 = 4x then we will separate the variable in one side and solve to get its value 9x-4x = -8 5x = -8 x = -8/5