koalacorn koalacorn
  • 28-03-2017
  • Mathematics
contestada

Seven fifths of a number, z, subtracted from 6 times the same number is 3 .

What equation represents the statement?

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irspow
irspow irspow
  • 28-03-2017
6z-7z/5=3

(30z-7z)/5=3

30z-7z=15

23z=15

z=15/23
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