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Mathematics 9 Online
OpenStudy (anonymous):

Please check answers! I am providing the work I did. #1. 3a+12-6a=-9 -9a+12 =-9 -9-12+ 3 9a=3 a=3 #2. 2m + 8 - 4m = 28 -2m + 8 = 28 28-8 = 20 -2m = 20 m=-5 #3. 78=3c+12-c+4 78=2c +16 78-16=62 2c=62 62/2c c=31

OpenStudy (anonymous):

Medals will go to whoever helps! I have more problems too...

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