A biker needs to pass two checkpoints before completing a race. The total distance for the race is 120 miles. The distance from the starting point to checkpoint 1 is 35 miles more than half the distance from checkpoint 1 to checkpoint 2. The distance from checkpoint 2 to the finish
line is 20 miles less than twice the distance from checkpoint 1 to checkpoint 2.
Let x represent the distance from the starting point to checkpoint 1, y represent the distance from checkpoint 1 to checkpoint 2, and z
represent the distance from checkpoint 2 to the finish line. Complete the matrix equation that models this situation, A^-1B= X