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OpenStudy (anonymous):
Solve -3x < 21. A. x > -7 B. x < -7 C. x > -63 D. x < -63
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sam (.sam.):
x > -7
sam (.sam.):
Dividing -ve , the sign switches
OpenStudy (anonymous):
divide both side by -3
OpenStudy (anonymous):
answer is -7
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