y = x 2 – y = x + 2 y = x + 1 y = - x 4 – y = x 4 – y = -x + 2 x + y = 2 4x y = -4 – 4x y = -3 – x + y = -2 x + 2y = 8 x y = 2 – x 3y = -3 – 2x + 3y = 12 2x 3y = 3 – x + 3y = -12 Solve by Substitution Classwork x = 4y 9 – x = y + 3 5x = -2y + 48 x = -3y + 20 y 4x = 28 – y = -2x 2 – y + 2x = -12 y = x + 15 x = -2y 7 – 2x + y = -14 x = 5y 38 – x = -4y + 16 y = 2x + 3 4x 2y = 8 – 4x + y = -6
y = x – 2 y = x + 2 y = x + 1 y = - x – 4 y = x – 4 y = -x + 2 x + y = 2 4x – y = -4 4x – y = -3 x + y = -2 x + 2y = 8 x – y = 2 x – 3y = -3 2x + 3y = 12 2x – 3y = 3 x + 3y = -12 Solve by Substitution Classwork x = 4y – 9 x = y + 3 5x = -2y + 48 x = -3y + 20 y – 4x = 28 y = -2x – 2 y + 2x = -12 y = x + 15 x = -2y – 7 2x + y = -14 x = 5y – 38 x = -4y + 16 y = 2x + 3 4x – 2y = 8 4x + y = -6
systems-of-linear-equations-inequalities-classwork-homework-2014-02-12.docx