SOLUTION: How do i solve this expression? {{{2/z=8/z-1/5}}}

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Question 154359: How do i solve this expression?
2%2Fz=8%2Fz-1%2F5
Found 2 solutions by Alan3354, jim_thompson5910:
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
2%2Fz=8%2Fz-1%2F5
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Multiply thru by 5z
10 = 40 - z
z = 30

Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
This is actually an equation (since it has an equals sign).


2%2Fz=8%2Fz-1%2F5 Start with the given equation.


5cross%28z%29%282%2Fcross%28z%29%29=5z%288%2Fcross%28z%29-1%2Fcross%285%29%29 Multiply both sides by 5z to eliminate the fractions.


10=40-z Simplify


10-40=-z Subtract 40 from both sides.


-30=-z Subtract.


30=z Multiply both sides by -1 to isolate "z".


So the solution is z=30