anonymous
  • anonymous
what are the coordinates? for y=2x-5 x-2y=-8
Mathematics
jamiebookeater
  • jamiebookeater
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zepdrix
  • zepdrix
Let's solve this system using substitution. \[\large \color{royalblue}{y=2x-5}\]\[\large x-2\color{royalblue}{y}=-8 \qquad \rightarrow \qquad x-2\color{royalblue}{(2x-5)}=-8\] From here, we can solve for x since that is the only variable in our equation.
zepdrix
  • zepdrix
Understand how I plugged that in? :o
anonymous
  • anonymous
yeah you want to solve for x correct?

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zepdrix
  • zepdrix
yes c: If we solve for x, we can plug that x value into one of the two equations to find a corresponding y value. That will be the coordinate pair we were looking for.
anonymous
  • anonymous
i get (6,7) :) thanks for your help

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