System A -5x+9y=-7 [A1] 2x-7y=13 [A2] System B x-12y=32 [B1] 2x-7y=13 [B2] 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. Ox 0 (a) How do we transform System A into System B? 0 x Equation [A1] x Equation [A2] X - ox x Equation [B1] - Equation [B2] x Equation [A1] + Equation [A2] → Equation [B2] ox Equation [A2] + Equation [A1] Equation [B1] ox x Equation [B2] (b) How do we transform System B into System C? - 1 System C x-12y=32 [C1] 17y=-51 [C2] - Equation [B1] Equation [C1] Equation [C2] ox Equation [B2] + Equation [B1] X O ox Equation [B1] + Equation [B2] → Equation [C2] → Equation [C1] 2 08 X S

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