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OpenStudy (anonymous):
z+9 over 4=2.1 . what is z ?
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OpenStudy (anonymous):
|dw:1381813508361:dw|
OpenStudy (anonymous):
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OpenStudy (anonymous):
z+9 = 4(2.1) Z + 9 = 8.4 z = 8.4 - 9 z = -0.6
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
|dw:1381813556314:dw|
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