Answer two questions about Systems A and B: System A
{-10x-4y=0
{-2x+7y=8

System B
{-10x-4y=8
{-2x+7y=0

1) How can we get System B from A?

Choose 1

A) Replace only the left-hand side of one equation with the sum/difference of the left-hand side of both equations.

B) replace one equation with the sum/difference of both equations.

C) Swap only the right-hand side of both equations.

D) Swap the order of the equations

2) Based on the previous answer, are the systems equivalent? In other words, do they have the same solution?

A) yes
B) no