Who solved the problem incorrectly, and where was the first mistake made?

Which point lies on a circle with a radius of 5 units and center at p(6, 1)?

Find the equation using the point (4,8)

Which of the following equations are equivalent to -2m - 5m - 8 = 3 + (-7) + m? -15m = -4m -7m - 8 = m - 4 -3m - 8 = 4 - m m - 4 = -7m - 8 -8 - 7m = -4 + m -8 - 3m = 4 - m