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1/x = 1/a +1/b [b]

 Jul 31, 2015

Best Answer 

 #1
avatar+128079 
+5

I assume you want to solve this for "b"  .....we have.....

 

1/x = 1/a +1/b       subtract 1/a from both sides

 

1/x - 1a =  1/b       get a common denominator on the left

 

[a - x] / ax  =  1/b        invert both sdies

 

[ax] / [ a - x] = b/1  

 

[ax]/ [a - x]   = b

 

 

 Aug 1, 2015
 #1
avatar+128079 
+5
Best Answer

I assume you want to solve this for "b"  .....we have.....

 

1/x = 1/a +1/b       subtract 1/a from both sides

 

1/x - 1a =  1/b       get a common denominator on the left

 

[a - x] / ax  =  1/b        invert both sdies

 

[ax] / [ a - x] = b/1  

 

[ax]/ [a - x]   = b

 

 

CPhill Aug 1, 2015

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