Question 509494
<font face="Times New Roman" size="+2">


Well we are confused too, because we don't know whether you mean:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5z}\ +\ \frac{4}{z}\ =\ 1]


or


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5}z +\ \frac{4}{z}\ =\ 1]


Because you didn't use parentheses to indicate whether that first z is in the denominator of the first fraction or not.  You should have written 3/(5z) + 4/z = 1 or (3/5)z + 4/z = 1.


************************************************

Further clarification indicates you meant:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{3}{5z}\ +\ \frac{4}{z}\ =\ 1]


Multiply by *[tex \Large 5z]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ \frac{15z}{5z}\ +\ \frac{20z}{z}\ =\ 5z]


Reduce the fractions:


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 3\ +\ 20\ =\ 5z]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ 5z\ =\ 23]


Multiply by *[tex \Large \frac{1}{5}]


*[tex \LARGE \ \ \ \ \ \ \ \ \ \ z\ =\ \frac{23}{5}]


John
*[tex \LARGE e^{i\pi} + 1 = 0]
My calculator said it, I believe it, that settles it
<div style="text-align:center"><a href="http://outcampaign.org/" target="_blank"><img src="http://cdn.cloudfiles.mosso.com/c116811/scarlet_A.png" border="0" alt="The Out Campaign: Scarlet Letter of Atheism" width="143" height="122" /></a></div>
</font>