anonymous
  • anonymous
Solve the system using any method. 5x-5y=0 7x-8y=8
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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freckles
  • freckles
notice the first equation can be written as 5x=5y or x=y just sub this into the second equation
anonymous
  • anonymous
|dw:1441080456430:dw| Is this how you set it up?
Abhisar
  • Abhisar
Solve the system using any method. 5x-5y=0 7x-8y=8 You can write the first equation as \(8y-8x=0\) Add this to the second equation and you will an equation in terms of x only. Find the value of x and then substitute it in any one of the parent equation to get value of y

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anonymous
  • anonymous
why would the 1st equation into 8y=8x=0?
Abhisar
  • Abhisar
\(5x-5y=0 \\ \Rightarrow 5(x-y)=0 \\ \Rightarrow 8x-8y=0 \Rightarrow 8y-8x=0\)
Abhisar
  • Abhisar
Right? Now the second equation has -8y, so we can cancel them out out and life will become happy c:
midhun.madhu1987
  • midhun.madhu1987
|dw:1441080926309:dw|
Abhisar
  • Abhisar
Yes, you can do that way too
anonymous
  • anonymous
Oh i understand now. :D Thanks so much!

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