SOLUTION: i have a few questions. It mostly relates to adding and subtracting fractions with some multiplication. i says to simplify, but it is hard for me. HELP!!! I'll provide the problem/

Algebra.Com
Question 118604This question is from textbook Algebra: structure and Method: book 1
: i have a few questions. It mostly relates to adding and subtracting fractions with some multiplication. i says to simplify, but it is hard for me. HELP!!! I'll provide the problem/answers (because they are in the back of the book)like this. equation= answer
33. 2/x-3 + 4/x+3 = 6(x-1)/(x-3)(x+3)
35. 4/x+1 - 1/x-2 = 3(x-3)/(x+1)(x-2)
37. 2y/(y-5)(y+5) - y/y-5 = -y(y+3)/(y-5)(y+5)
39. x/x+y + y/x-y = x^2 + y^2/(x+y)(x-y)
This question is from textbook Algebra: structure and Method: book 1

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
I'll do the first two to help you get started.

#33

Start with the given expression




Since the denominators are not equal, we need to get them to a common denominator. Since the LCD is , we need to get each denominator to




Multiply by



Combine the fractions



Multiply by



Combine the fractions



Since the 2 fractions have the common denominator , we can combine them. In order to do that, just combine the numerators.


Distribute


Combine like terms


Now factor out the GCF 6 from the numerator


So simplifies to







#35




Start with the given expression




Since the denominators are not equal, we need to get them to a common denominator. Since the LCD is , we need to get each denominator to




Multiply by



Combine the fractions



Multiply by



Combine the fractions



Since the 2 fractions have the common denominator , we can combine them. In order to do that, just combine the numerators.


Distribute



Combine like terms



Factor out 3 from the numerator


So simplifies to

RELATED QUESTIONS

i need help with adding,subtracting,and multiplying... (answered by Nate)
create a problem to solve a variable with includes adding, subtracting and multiplying... (answered by rapture)
adding and subtracting fractions to find the least common... (answered by Alan3354)
Hi, I actually have 2 questions relating to adding and subtracting fractions using... (answered by guapa)
Hi I need help with adding and subtracting with unlike denominators. I have a couple... (answered by checkley75)
I need to prove why the following equations are equal to each other. I have tried... (answered by stanbon,kensson)
its adding and subtracting rational expressions and i need help with like the ones with... (answered by math-vortex)
Do you think adding and subtracting radicands are similar to adding and subtracting... (answered by Theo)