deeannarod deeannarod
  • 01-08-2017
  • Mathematics
contestada

Solve for x and y: 7y−5x=31 & x=4−2y

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sergibcnusa sergibcnusa
  • 01-08-2017
7*y - 5*(4-2y) = 7y - 20 +10y = 17y-20 = 31,

y =3, x = -2.

Weird 20 min without answer!
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nia7701 nia7701
  • 01-08-2017
y =3 x=-2 hope it helps
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