anonymous
  • anonymous
how do you solve this x-1=x+1 --- ---- 2x+1 x-1
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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radar
  • radar
I think you end up with (x+1)/(2x+1) providing the equation is what I think it is
radar
  • radar
I am assuming it is: (x-1)/(2x+1) = (x+1)/(x-1)
anonymous
  • anonymous
yes

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radar
  • radar
O.K. The (x-1) can be eliminated.
radar
  • radar
They "cancel" but I can't remember the rule. I'm thinking.
anonymous
  • anonymous
The (x-1)'s can't be eliminated if you have an = sign between the fractions. If it is a multiplication problem, then they could be eliminated.
radar
  • radar
ooops
anonymous
  • anonymous
You need to cross multiply. (x - 1)(x -1) = (2x + 1)(x + 1)
anonymous
  • anonymous
x^2 - 2x + 1 = 2x^2 + 3x + 1
anonymous
  • anonymous
make this equal to 0 0 = x^2 + 5x
anonymous
  • anonymous
Factor 0 = x(x + 5) So x = 0 or x = -5
anonymous
  • anonymous
thanks i can see exactly were you got every number from ill do the next one and see if i understood it
radar
  • radar
I am trying to prove those answers, when I subsstitute the -5 it does not check out. Where am I going wrong?
radar
  • radar
(-5-1)/(2(-5)+1)=(-5+1)/(-5-1) -6/-9 = -4/-6 Unh unh Something is wrong with the solution.
radar
  • radar
Never mind I didn't reduce!! lol
radar
  • radar
2/3=2/3
radar
  • radar
I had a senior moment!

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