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DinoSlayer99 DinoSlayer99
  • 16-12-2015
  • Mathematics
Answered

The difference of two numbers.(a,b) is 21. The difference of 5 times a and 2 times b is 18. What are the values of a,b?

Verified Answer :

dylan16 dylan16
  • 16-12-2015

the equation is b-a= 21;
2b-5a = 18
a=8 and b= 29
therefore 29-8= 21
2 (29) -5 (8) = 18
58-40=18

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