mine the solution to the system of equations below. You must show work for all questions to get credit. 1) y = 1 y= 3x + 1 2) 8x-4y-16 --6x-20 A) (0, 1) B) (-1, 0) (-2, -8) C) (7, 1) B) (2,1) D) (-7, -1) C) (-2,1) D) (2,-1) 3) -2x+3y=4 y=x+4 4)-x+y=7 6x-2y=-18 A) (-8, 1) (-8,-4) B) (-2, 1) D) (-1, 1) A) (-1, -6) C) (1,-6) 5) 7x-2y-18 x+y=9 6) 5x+3y=2 -4x-y=-10 B)-1,6) D) (-2, -6) (4,5) C) (4,-1) B) (-4,-1) D) (-7,-4) (A) (4, -6) C) (3,-6) B) (3,6) D) (-3,6)