Graph each system of equations to find its solution. Then check your solution by substituting it into both equations. Be sure to show all work. 2 1. y = -x + 6 and y=x-9 -10-9-8-7-6-5-4-32 Solution: 3. y = 3x - 4 and y -10-98-76 5-432 plution: 10 9 8- 5 4 3- 2 1 -14 -2 -3 -4 -5 6 -7 -8 -9 10 = 10 9. 8- 6 5 4 2- 1- -3 -4 -5 6 1 -7 -8 -9. 10 7 8 9 10 CHECK: 1 2 3 4 5 6 7 8 9 10 2 x + 10 CHECK: 2. y = 3 and y = x + 5 30-987654321 Solution: 4. Y=2x 10 9 8- 6 5 Solution: 2 3 -7 -10 3 3 2x and y = -x + 9 -10-9-8-7-6-5-4-3-2-1 10 10 9 8- 7. 6- 5 4 3 2- 1 -5 910 CHECK: 12 3 4 5 6 7 8 9 10 -2 -3 7 -8 9 10 CHECK: