#I need help with my maths home work

18 messages · Page 1 of 1 (latest)

mossy parrotBOT
frank ore
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dfj

brazen orchid
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27 = 9r
r = 3

lofty topaz
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We can add 4r to both sides

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such that

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27-4r+4r=5r+4r

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then in left hand side the 'r' term cancels out

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Therefore,

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27=9r

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then we divide 9 from both sides

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$27/9=9r/9$

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Therefore ,

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$3=r$

wet hearthBOT
lofty topaz
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or

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$r=3$

wet hearthBOT
steel fable
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LOL