k/8 + 1 - k = 19 solve

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01-11-2016
Mathematics

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k/8 + 1 - k = 19 solve

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dasetka dasetka · Answer 1 · 2016-11-02T00:02:00+01:00

[tex] \frac{k}{8} [/tex] + 1 - k = 19 Subtract 1 from both sides
  [tex] \frac{k}{8} [/tex] - k = 18 Multiply both sides by 8
  k - 8k = 144 Subtract
  -7k = 144 Divide both sides by -7
k = -[tex] \frac{144}{7} [/tex]
k ≈ 20.57