Solve for one of the variables first ,, then whatever answer you receive from x or y , you then begin to plug it in to get other variable.
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You could talk about it's past and/or it's ancient civilizations. You could also possibly compare it's old civilization to it's current one, talk about the changes.
Answer:
Hundreds of gold-seekers died and were buried along the trail. The strain took a toll on the oxen and mules as well. As they traveled, forty-niners lightened the load by throwing out everything they didn't need--from cookstoves and furniture to barrels of flour.
Answer: Jacksonian reconstruction policy was initially rejected by the general Northern population, they thought the South should have been punished.
Explanation: