mscrandol mscrandol

29-05-2015
Mathematics

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3(y-1/7)-y =4(2-y) solve for y

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Panoyin Panoyin

29-05-2015

      3(y - ¹/₇) - y = 4(2 - y)
3(y) + 3(⁻¹/₇) - y = 4(2) + 4(-y)
    3y + (⁻³/₇) - y = 8 + (-4y)
      3y - ³/₇ - y = 8 - 4y
      3y - y - ³/₇ = 8 - 4y
     2y - ³/₇ = 8 - 4y
      + 4y + 4y
   6y - ³/₇ = 8
   + ³/₇ + ³/₇
6y = 8³/₇
   6    6
    y = 1¹⁷/₄₂

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