Consider the following three systems of linear equations.

4x+2v = #10 [A1] 4x 2v =#10 [B1] 4 42 10 [01] 5x +6y -9 [A2] #7x : 21 [B2] 3 [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 * Equation [A1] -> Equation [B1] X 5 x Equation [A2] - Equation [B2] O x Equation [A1] + Equation [A2] Equation [B2] x Equation [A2] + Equation [A1] Equation [B1] How do we transform System B into System C? x Equation [Bi] - Equation [C1] x Equation [B2] - Equation [C2] x Equation [B1] + Equation [B2] > Equation [C2] O x Equation [B2] + Equation [B1] -> Equation [C1]