anonymous
  • anonymous
using the method of substitution how do I solve 25x+5y=11 -5x=y+10
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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Mertsj
  • Mertsj
From the second equation, y = -5x-10 Put that into the first equation in place of y
anonymous
  • anonymous
so is it25x+5(-5x-10)=11
Mertsj
  • Mertsj
\[25x+5(-5x-10)=11\]

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Mertsj
  • Mertsj
\[25x-25x-50=11\]
Mertsj
  • Mertsj
\[0-50=11\]
Mertsj
  • Mertsj
\[-50=11\]
Mertsj
  • Mertsj
NO!! NOT TRUE!!! There is no solution. The lines must be parallel. Let's check the slopes and see if they are the same.
Mertsj
  • Mertsj
Sure enough. The slopes are both -5 so the lines are parallel and there is no solution.
anonymous
  • anonymous
well that is what I was wondering couldn't seem to get it was close thanks
Mertsj
  • Mertsj
yw

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