X+ y - 6 = 0
x - y - 8 = 0
when you eliminate y , what is the resulting equation?

The perimeter of a movie screen is 54 meters. the screen is 18 meters wide. how tall is it?

How do you find the area of a triangle

According to modern science, earth is about 4.5 billion years old and written human history extends back about 10,000 years. suppose the entire history of earth is represented with a 10-meter-long timeline, with the birth of earth on one end and today at the other end.