Solve each system of equation
8. –5x + y - 4z = 60
2x + 4y + 3z = -12
6x – 3y – 2z = -52

Answer the government provides "unemployment insurance"

It is useful for historians to write narratives so that history can be passed on from their point of view.  think about a story being told in third person, then think about it again being told in first person, by someone who actually experienced the event.