Final answer:
The standard form equation for x=2 is 0=2−x, which is option c). This represents the equation in the standard linear form ax + by = c.
Step-by-step explanation:
The standard form equation when x=2 is c) 0=2−x. In standard form, a linear equation is usually represented as ax + by = c, where a, b, and c are integers, and a should be non-negative. In the case of x=2, there is no y term, and it can be rewritten by subtracting x from both sides to give 0 = 2 - x, which fits the standard form with a = -1, b = 0, and c = 2.