kidfree3 kidfree3
  • 20-09-2017
  • Mathematics
contestada

1/3 of a number is 12 less than the number itself

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greymek15
greymek15 greymek15
  • 20-09-2017
Let "x" be a substitute for "a number"

1/3(x)=x-12    Multiply by 3
x=3x-36         Get n onto the same side of the equation
2x=36            Divide by 2
x=18

That's your answer.
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