momorin1
momorin1 momorin1
  • 06-09-2017
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7(3n-1) + 7n= -38-3n

73n1 7n 383n class=

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addictwithataco
addictwithataco addictwithataco
  • 06-09-2017
28n-7=-38-3n

31n-7=38

31n=-31

n= -1
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