System A System B System C -5x +2y=4 [A1] 5x+2y =4 [B1] -5x +2y =4 [C1] -7x+8y- -10 [A2] 13x = -26 [B2] x=-2 [C2] Answer the questions below. For each, choose the transformation and then fill in the blank with the correct number. The arrow (-) means the expression on the left becomes the expression on the right. How do we transform System A into System B? O x Equation [Al] - Equation [81] O x Equation [A2] - Equation [82] O x Equation [A1] + Equation [A2] - Equation [B2] x Equation [A2] + Equation [A1] - Equation [81] How we transform System B into System C? x Equation [81] - Equation [C1] x Equation [82] - Equation [C2] x Equation [81] + Equation [B2] - Equation [CZ] x Equation [82] - Equation [81] - Equation [C:)