4 4 Solving Simultaneous Equations Equations And Inequalities Siyavula
2x – y = 3 ii 3x – 4y = 7 ; Solve the following inequality by graphing 2x – 3y ≥ 6 Solution The first is to make y the subject of the line 2x – 3y ≥ 6 Subtract 2x from both sides of the equation 2x – 2x – 3y ≥ 6 – 2x3y ≥ 6 – 2x Divide both sides by 3 and reverse the sign y ≤ 2x/3 2 Now draw a graph of y = 2x/3 – 2 and shade below the line
