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a simple (annoying) equasion - HSN forum

# a simple (annoying) equasion

2 replies to this topic

### #1Sep

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Posted 10 September 2009 - 09:50 PM

• (6/x) - (6/x+1) = 1

solve for x

this was part of a larger question, which i have taken to this stage

i know x = 2
but... i cant get the steps to finish it off

its such a silly thing but i cant put my finger on the working

### #2Amanda H

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Posted 10 September 2009 - 11:17 PM

Treat this question as you would if it was a normal fraction question with only numbers and no 'x'

Start by creating a common denominator so you can carry out the subtraction:

Expand the brackets

Collect terms on the left

Multiply through by the denominator

Expand right hand side

Move everything to one side leaving 0 on the other

Factorise

If the only answer is x=2 then I'm assuming the answer is a measurement or something and not allowed to be negative.

### #3Sep

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Posted 11 September 2009 - 05:58 AM

many thanks Amanda H,
i still cant believe i had problems solving this need to practice some me thinks

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