Mathematics, 20.05.2021 04:00, sarah957

A- (-1) R2+R1 ->R1
B- R1 + R3 -> R1
C- (-1) R2 + R3 -> R1
D- R1 +R2 -> R1

Answers: 1

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A- (-1) R2+R1 ->R1
B- R1 + R3 -> R1
C- (-1) R2 + R3 -> R1
D- R1 +R2 ->...