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4 November, 21:00

Pristine House Cleaners charges $19.85 plus $32 a room. Sparkle housecleaners charges $61.85 plus $18 a room. Right and solve an equation to find the number of rooms for you which the total cost of both housecleaners is the same?

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  1. 4 November, 23:56
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    19.85 + (32r) = 61.85 + (18r)

    32r-18r=61.85-19.85

    14r=42

    r=42/14

    r = 3
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