lamarionwilliam lamarionwilliam
  • 14-06-2018
  • Mathematics
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What is the value of a in the equation 5a – 10b = 45, when b = 3?

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hblong2017 hblong2017
  • 14-06-2018
10 times 3 is 30 and 30 plus 45 is 75 and 75 divided by 5 is 15 so a=15. See 5(15) - 10(3)= 45 
75 - 30 = 45
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