JEE Main 2021 Mathematics question

If the equation of the plane passing through the line of intersection of the planes 2x – 7y + 4z – 3 = 0, 3x – 5y + 4z + 11 = 0 and the point (–2, 1, 3) is ax + by + cz = 7, then the value of 2a + b + c – 7 is ——