06/11/13

x-2y=10 1/2x-2y=4

x-2y=10 1/2x-2y=4 please help and show step by step instructions

06/11/13

1/2x-2y=4 please help

1/2x-2y=4 please help  with step by step instructions

06/11/13

x=y-8 -x-y=0

x=y-8 -x-y=0 please help and show step by step

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