solving a rational equation intermediate algebra

Sep 27, 2011 23:40

how do I solve these questions?

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Comments 5

yady September 28 2011, 07:15:50 UTC
So, what is your question?

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pineapplemango September 28 2011, 07:18:45 UTC
after clearing the fraction, I don't know which numbers to cancel out/ move to the other side.

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yady September 28 2011, 07:25:37 UTC
Can you show what you did so far, step by step? (Also a tip: When writing fractions with denominators like x-1, use parentheses. Your first equation looks like you mean 5/x+2/x+1=2, which is probably not what you mean.)

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just_you_wait September 29 2011, 03:36:58 UTC
Once you multiply through by each denominator, move all your x terms to one side and all your non-x terms to the other side. Note the limitations on the domain of x.

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korean_guy_01 September 28 2011, 11:32:05 UTC
When you have a common denominator, you can combine the numerators.

A guaranteed common denominator if you have two denominators A & B is AB (A times B).

In problem #1, A = x & B = x-1 (presumably). Remember if you multiply one part of a fraction by a factor then the other part must be multiplied by the same factor.

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