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Mathematics 24 Online
OpenStudy (anonymous):

Graph on a number line. |3x|>21

OpenStudy (anonymous):

x>7 and x<-7. So you would have an open circle and shaded in from -7 to the left, and another open circle at 7 shaded to the right. There will be open space in the middle.

OpenStudy (anonymous):

|dw:1340308333143:dw|

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