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Mathematics 12 Online
OpenStudy (macaylam):

Marta tried solve the system below, but she made a mistake. Read carefully and try to figure out what her mistake was. solve the system below: 10x+y=22 2x+y=-2 y=22-10x=10x+(22-10x)=22 10x+22-10x=22 0x+22=22 22=22 infinitely many solutions. Explain the mistake.

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