30-10-2020
Mathematics

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Sm0lBrain Sm0lBrain

30-10-2020

Answer:

18< 9r-7(4+r)

18< 9r -28-7r

-9r+7r <-18+9

-2r<-9 /(-2)

r>9/2

not 100%sure tho

Answer Link

parksmichele5 parksmichele5

30-10-2020

Step-by-step explanation:

remove parenthesis

collect like terms

move terms

calculate

divide both sides

Answer Link

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