jordanh12435 jordanh12435
  • 15-11-2018
  • Mathematics
contestada

when solving 2n – 5 = 8n + 7 do you subtract 2 from 8 or 8 from 2

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heyitsjackie heyitsjackie
  • 15-11-2018
either just make sure you carry the negative
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hippygoon
hippygoon hippygoon
  • 15-11-2018

Neither!

2n-5= 8n+7

   +5       +5

2n= 8n+12

/2    /2   /2

n= 4n+6

2(4n+6)-5= 8(4n+6)+7

8n+7= 32n+55

    -7           -7

8n= 32n+48

/8   /8      /8

n= 4n+6


This problem has NO SOLUTION!

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