Mathematics, 29.10.2020 18:00 gwendallinesikes

Galena is solving the following system. Step 1: She multiplies equation (3) by 3 and adds it to equation (1). Step 2: She multiplies equation (3) by –7 and adds it to equation (2). Which statement explains Galena’s mistake?

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Galena is solving the following system. Step 1: She multiplies equation (3) by 3 and adds it to equa...

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