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Adding rational expressions

Mathematics
Tutor: None Selected Time limit: 0 Hours

[[x-1]/[x-3]]-[[2x+4]/[5x-15]]

Apr 27th, 2015

Make the denominators equal:

[5(x-1)/5(x-3)]-[(2x+4)/(5x-15)]=[5x-5-(2x+4)]/(5x-15)=[3x-1]/(5x-5)

I guess you just want to simplify this, if you have any questions let me know, thanks

Apr 27th, 2015

how did you get (5x-5)...

Apr 27th, 2015

Whoops, typo. Forgive me. 

Apr 27th, 2015

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