Two times the difference between a number and 1 is equal to the sum of this number and 5. Let this number be x, then the equation is obtained______ .

Two times the difference between a number and 1 is equal to the sum of this number and 5. Let this number be x, then the equation is obtained______ .

Let this number be X. from the meaning of the question, we get 2 (x-1) = x + 5. So the answer is 2 (x-1) = x + 5