Show that each of the following systems of linear equations has infinite number of solutions and solve:

x – y + 3z = 6
x + 3y – 3z = – 4
5x + 3y + 3z = 10

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.