X+ 3y - 2z - w = 5 4x + y + 2z + 2w = 3 -3x -y + z -5w = -24 x - y - 3z - 4w = -8

Match the equivalent expressions. x - 3y + 12 12 - 3y - 2x + x + 2x 3x + 2y - 2x + y + 12 3y + 12 3x + y - 12 4y + 3y + 3x - 6y - 10 - 2 x + 3y + 2x - 3x + 7 + 5 x + 3y + 12 5 + 2y + 7x - 4x + 3y - 17

How many kilometers are equal to 5 miles? use 1 mile ≈ 1.61 kilometers. !

Hiroaki wants to find 3 3/4 - 7/8 explain why he must rename 3 3/4 to do the subtraction.