kim017 kim017
  • 09-09-2016
  • Mathematics
contestada

seven times a number is the sane as 12 more than 3 times the number. find the number

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hanvoldj
hanvoldj hanvoldj
  • 09-09-2016
7x=3x+12
move the x to one side of the equation (subtract 3x from each side of the equation)
4x=12
get x alone (divide each side of the equation by 4)
x=3
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