Let us assume the unknown number to be = x Then, based on the information's already given in the question the equation can be written as 7x - 12 = 16 7x = 16 + 12 7x = 28 x = 28/7 = 4 So from the above deduction we can conclude that the unknown number in the question is 4. I hope the procedure is simple enough for you to understand.You can always use this method in future for solving similar problems.
