4) Solve the system of equations using the Graphing Method. Show all steps neatly. =-x-6 y = -3x + 4y = -1 5) Solve the system of equations using the Elimination Method. Show all steps neat 6x-5y = -1 -6x-4y = 10 Check: 5 4 3 y-axis 4321 1 2 2 J -5 x-axis Solution: Solution: 6) Solve the system of equations using the Substitution Method. Show all steps neatly. 3x - 4y = 7 x = 7 Check: Solution: 7) Solve the system of equations using the Substitution Method. Show all steps neatly. 6x+6y=-6