SOLUTION: Addition and Subtraction of Rational Expressions Add or subtract the following: {{{(z+3)/2+7/2}}} {{{3/z - (z-4)/z}}} {{{(8y-3)/(y+7)-(4y-1)/(y+7)}}}

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Question 156402This question is from textbook elementary and intermediate algebra
: Addition and Subtraction of Rational Expressions
Add or subtract the following:


This question is from textbook elementary and intermediate algebra

Answer by Edwin McCravy(20056)   (Show Source): You can put this solution on YOUR website!
Addition and Subtraction of Rational Expressions
Add or subtract the following:


The denominators are the same, 2, so combine the tops over
this common denominator, 2:



Remove the parentheses:



Simplify



That's it!:

-------------------




The denominators are the same, z, so combine the tops over
this common denominator, z:



Remove the parentheses:



Simplify



That's it!:


-----




The denominators are the same, , so combine the tops over
this common denominator, :



Remove the parentheses:



Simplify



That's it!:            

Edwin




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