Mathematics, 26.11.2020 04:50 breahk12
Mark is solving the following system. x+y+z= 2 (1) 3x+2y+7=8 (2) 4x-y-77 = 16 (3) Step 1: He multiplies equation (1) by 7 and adds it to equation (3). Step 2: He multiplies equation (3) by 2 and adds it to equation (2). Which statement explains Mark's mistake?
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Mark is solving the following system. x+y+z= 2 (1) 3x+2y+7=8 (2) 4x-y-77 = 16 (3) Step 1: He multipl...
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