The expression two times the difference of one-third of a number and three is 9 is equivalent to
9 = 2[(1/3)x - 3] Evaluate this expression by distributing 2 to both terms 9 = 2x/3 - 6 Add 6 to both sides to eliminate 6 on the right side 9 + 6 = 2x/3 - 6 + 6 15 = 2x/3 Multiply 3 to both sides to eliminate the denominator three 15*3 = (2x/3)*3 45 = 2x And then divide the term by 2 x = 45/2 x = 22.5
