solving linear equation

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perky3

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Apr 26, 2006
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Problem that is already worked out:
Note that because of the denominator, x cannot equal -1.

[1/(X+1) + X/(X+1)] = 5


Simplify the left side. Since it is equivalent to (x+1)/(x+1), we have
1= 5



I am confused as how to come up with (x+1)/(x+1). Is it because we have the same denominator thus we can cancel one of the denominators out? And that leaves 1+X on top (numerator) which is also X+1 over X+1???? Am I understanding this correctly?


Thanks for any input,

Tracy
 
Don't get all excited, Tracy:

1/2 + 1/2 = 1, right? That's (1 + 1) / 2 = 2/2 = 1

a/x + b/x = (a+b)/x : remember that :idea:
 
perky3 said:
Problem that is already worked out:
Note that because of the denominator, x cannot equal -1.

[1/(X+1) + X/(X+1)] = 5


Simplify the left side. Since it is equivalent to (x+1)/(x+1), we have
1= 5



I am confused as how to come up with (x+1)/(x+1). Is it because we have the same denominator thus we can cancel one of the denominators out? Yes. And that leaves 1+X on top (numerator) which is also X+1 over X+1???? You are right.Am I understanding this correctly? Yes. you are.


Thanks for any input,

Tracy
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