mary138 mary138
  • 23-09-2016
  • Mathematics
contestada

the sum of a number and 20 is greater than four the number decreased by one

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wolffiegirl
wolffiegirl wolffiegirl
  • 02-02-2017
x + 20 > 4x - 1 
20 > 3x - 1 
21 > 3x 
7 > x
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