orlando19882000 orlando19882000

03-02-2017
Mathematics

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What are the solutions of the inequality graph the solutions -12r<-24

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apologiabiology apologiabiology

03-02-2017

when you multiply or divide both sides by a negative in an inequality, flip the sign

I will show 2 ways, 1 with multipy and one with add

1. multiply
divide both sides by -12 and flips sign
r>2

2. add
add 12r to both sides
0<12r-24
add 24 to both sides
24<12r
divide both sides by 12
2<r
r>2

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