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help me plz what is the answer??          3/4+z=4/5           what is the answer plz help me :)  this is for home work. btw.

 Nov 30, 2016
 #1
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Assuming you want me to solve for z

 

3/4 + z = 4/5    we want to isolate z

 

3/4 +z - 3/4 = 4/5 - 3/4  subtract 3/4 from both sides to get z by itself

 

z = 4/5 - 3/4  simplify

 

z = 16/20 - 15/20  find the lowest common denominator between the two fractions so that you can subtract the two fractions

 

z = 1/20 

 Nov 30, 2016

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