Help me with this question please

Acable car begins its trip by moving up a hill. as it moves up, it gains elevation at a constant rate of 50 feet/minute until it reaches the peak at 2,000 feet. then, as the car moves down to the hill’s base, its elevation drops at the same rate.

If m 17 27 90 63 ** picture is attached

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)