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Mathematics 7 Online
OpenStudy (anonymous):

what is the solution to the inequality below -3x<27 ?

jimthompson5910 (jim_thompson5910):

-3x means -3 times x

jimthompson5910 (jim_thompson5910):

to isolate x, you undo the multiplication by -3 so you divide both sides by -3

jimthompson5910 (jim_thompson5910):

don't forget the inequality sign will flip

OpenStudy (anonymous):

is it x<-9 ?

jimthompson5910 (jim_thompson5910):

close

jimthompson5910 (jim_thompson5910):

but again remember the inequality sign flips

jimthompson5910 (jim_thompson5910):

this happens when you divide both sides by a negative number

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