The common difference of the sequence 2x, -7, -x, -4, -4x, -1 is 2.
The common difference of the sequence 2x, -7, -x, -4, -4x, -1 is 2.
Subtract each term from its previous term to find the differences: -7 - (2x) = -9 - (-7) = -2, -x - (-7) = -4, -4 - (-x) = -3x - (-7) = -3x + 7, -1 - (-4) = 3, -4x - (-1) = -4x + 1.
From the differences obtained, we can observe that the common difference is consistently 2.
Therefore, the common difference of the sequence 2x, -7, -x, -4, -4x, -1 is 2.