wadukebill wadukebill
  • 24-08-2017
  • Mathematics
contestada

a number subtracted from 90 is 3 times that number

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PraySlayConquerdaDay
PraySlayConquerdaDay PraySlayConquerdaDay
  • 24-08-2017
90-n=3n hope this helps you
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carliecryer
carliecryer carliecryer
  • 24-08-2017
the equation is 90-n=3n but then to solve it you add n to both sides to get the variable on one side so then
90-n=3n becomes 90=4n and n=22.5
so the number is 22.5
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