kelliepollock03 kelliepollock03
  • 22-08-2017
  • Mathematics
contestada

The sum of a number and -20 is 40.What is the number?

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musiclover10045
musiclover10045 musiclover10045
  • 22-08-2017

sum means addition

 so x +-20 = 40

x = 40 +20 = 60

x=60


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