[tex]\begin{gathered} -4x\text{ - 2y = -2 -----(1)} \\ x\text{ - 2y = 9}-------(2) \\ \text{Then equation(1) - (2)} \\ -4x\text{ - 2y = -2} \\ -(x\text{ - 2y = 9}) \\ -4x\text{ -}x\text{ }=\text{ -2-9} \\ -5x\text{ = -11} \\ x\text{ = }\frac{-11}{-5}\text{ = }\frac{11}{5} \\ \text{put }x\text{ into equation(1)} \\ -4x\text{ - 2y = -2 } \\ -4(\frac{11}{5})\text{ - 2y = -2} \\ \frac{-44}{5}\text{ - 2y = -2} \\ -2y\text{ = }\frac{44}{5}\text{ - 2} \\ -2y\text{ = }\frac{34}{5} \\ y\text{ = }\frac{\frac{34}{5}}{-2} \\ y\text{ =}\frac{-34}{10}\text{ = }\frac{-17}{5} \end{gathered}[/tex]
