how do you solve this x-1=x+1
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2x+1 x-1

Question

how do you solve this x-1=x+1
                                   ---   ----
                                 2x+1   x-1

radar · Answer

I think you end up with (x+1)/(2x+1)    providing the equation is what I think it is

radar · Answer

I am assuming it is:  (x-1)/(2x+1) = (x+1)/(x-1)

anonymous · Answer

yes

radar · Answer

O.K.  The (x-1) can be eliminated.

radar · Answer

They "cancel" but I can't remember the rule.  I'm thinking.

anonymous · Answer

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 · Answer

ooops

anonymous · Answer

You need to cross multiply.   
(x - 1)(x -1) = (2x + 1)(x + 1)

anonymous · Answer

x^2 - 2x + 1 = 2x^2 + 3x + 1

anonymous · Answer

make this equal to 0
0 = x^2 + 5x

anonymous · Answer

Factor
0 = x(x + 5)

So x = 0 or x = -5

anonymous · Answer

thanks i can see exactly were you got every number from ill do the next one and see if i understood it

radar · Answer

I am trying to prove those answers, when I subsstitute the -5 it does not check out.  Where am I going wrong?

radar · Answer

(-5-1)/(2(-5)+1)=(-5+1)/(-5-1)
-6/-9 = -4/-6   Unh unh  Something is wrong with the solution.

radar · Answer

Never mind I didn't reduce!!  lol

radar · Answer

2/3=2/3

radar · Answer

I had a senior moment!