Show that each of the following systems of linear equations has infinite number of solutions and solve:
2x + y – 2z = 4
x – 2y + z = – 2
5x – 5y + z = – 2
Mixed-up sentence exercise
Put the parts in order to form a sentence. When you think your answer is correct, click on "Check" to check your answer. If you get stuck, click on "Hint" to find out the next correct part.