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OpenStudy (anonymous):
Solve using addition and multiplication principles. Show work.. -3z-7<-4
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OpenStudy (anonymous):
add 7 to both sides u get -3z<3 now multiply by -1 on both sides...u get 3z>-3 and so u hav z>-1 PS;note the change of in equality wen i multiplied by -1 on both sides.
OpenStudy (anonymous):
Thanks
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