Taylor
  • Taylor
x-y=5 can anyone solve this? or explain how to solve this problem?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
I believe you need to solve for y to then continue to solve for x
anonymous
  • anonymous
no...thats not right...
anonymous
  • anonymous
if you have an equation with 2 unknown variables, you need 2 different equations to solve it...

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anonymous
  • anonymous
the equation you gave is for a graph...there are a lot of possible questions that can come from graphs...such as what is the x or y intercept
Taylor
  • Taylor
im only solving for y
sandra
  • sandra
right, so to solve for y, that means you want to get y alone on one side of the equation
OakTree
  • OakTree
I guess you could say that y=x-5, but past that you can't do anything without another equation.
anonymous
  • anonymous
y=x-5...this means that the y intercept on a graph is -5 and the x intercept is 5...the slope is 1...etc
anonymous
  • anonymous
hope that helps.
sandra
  • sandra
right so the basic rule of algebra is, you can do the same operations to both sides o the equation and know that it still holds - this means you can add anything to both sides, subtract, divide, or multiple both sides by the same thing and it's still true
sandra
  • sandra
so x-y = 5
sandra
  • sandra
so get y alone, you could try adding "y" o both sides
anonymous
  • anonymous
yes and subtracting 5 from both sides as well
sandra
  • sandra
so 1. x - y = 5 2. x - y + y = 5 + y 3. x = 5 + y 4. and no subtract y from both sides 5. x - 5 = 5 + y -5 6. x - 5 = y 7. y = x -5
Taylor
  • Taylor
ok I think I got it now...thanks so much
anonymous
  • anonymous
no=now* ;)
anonymous
  • anonymous
and your subtracting 5..not y :p
sandra
  • sandra
lol yep!
sandra
  • sandra
ack!

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