coripowell9155 coripowell9155 09-01-2021 Mathematics contestada Select the TWO systems of equations that have exactly one solution. Your answer: y = 3x + 1 y = -3x + 7 y = 3x + 1 y = x + 1 y = 3x + 1 y = 3x + 7 x + y = 10 2x + 2y = 20 x + y = 10 x + y = 20