kamryntolbert kamryntolbert
  • 02-12-2016
  • Mathematics
contestada

how do i solve
y=4y and
x+y=5 while solving systems by subtitution

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PossiblySomebody
PossiblySomebody PossiblySomebody
  • 02-12-2016
Subtract y from both sides to get 0=3y and 5=y+x Multiply this one by -3 to get -15=-3y-3x The Ys cancel and you get -3x=-15 solve for x and substitute it in the y equation to check (y should be 0)
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