4x + 4y = 20 x + 2y = 4 x + 5y = -2 3x y = -5 – -3x 2y = -10 – 3x y = 11 – -3x 5y = -71 – Systems: Solve by Elimination (Multiply First) Classwork 5x 4y = 47 – -x 16y = 125 – 3x 2y = 33 – -4x 4y = 16 – 2x + y = 21 4x + 3y = 51 -3x + 3y = -27 12x + 5y = 108 3x + 4y = 3 -12x y = -57 – 2x + 5y = -7 8x + 3y = 57
4x + 4y = 20 x + 2y = 4 x + 5y = -2 3x – y = -5 -3x – 2y = -10 3x – y = 11 -3x – 5y = -71 Systems: Solve by Elimination (Multiply First) Classwork 5x – 4y = 47 -x – 16y = 125 3x – 2y = 33 -4x – 4y = 16 2x + y = 21 4x + 3y = 51 -3x + 3y = -27 12x + 5y = 108 3x + 4y = 3 -12x – y = -57 2x + 5y = -7 8x + 3y = 57
graphing-linear-equations-cw-hw-2013-05-21.docx