Question

what does your answer of x = 200 represent?
-150 + x = 50
x = 50 - (-150)
x = 50 + 150
x = 200
lunas final elevation was 200 feet.
luna biked for 200 minutes.
lunas elevation increased by 200 feet.

Explanation:

The equation \(-150 + x = 50\) likely models a situation where -150 is an initial elevation (or a change) and \(x\) is the change in elevation (or a related quantity) to reach a final elevation of 50. Solving gives \(x = 200\), which represents the increase in elevation (since adding 200 to -150 gives 50, the final elevation). The other options: "final elevation was 200" is wrong as final is 50, and "biked for 200 minutes" is unrelated to the elevation - based equation.

Answer:

Luna's elevation increased by 200 feet.