bdjalwmdnej bdjalwmdnej 16-03-2018 Mathematics contestada Add .[12 -5] + [-3 -9] [0 -7 ] [-14 -10] [9 -14] A [-14 3] [3 -8] B [10 -21] [9 -14] C [3 -14] [15 4] D [14 3]
