document.write( "Question 528651: 1/a - 1/b = 1/c\r
\n" ); document.write( "\n" ); document.write( "solve for b \n" ); document.write( "

Algebra.Com's Answer #349381 by Maths68(1474) $\"\"$ $\"About$

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$\"1%2Fa+-+1%2Fb+=+1%2Fc\"$
\n" ); document.write( " $\"+-+1%2Fb+=+1%2Fc-1%2Fa\"$
\n" ); document.write( " $\"+-+1%2Fb+=+%28a-c%29%2Fac\"$
\n" ); document.write( " $\"+-+b+=+ac%2F%28a-c%29\"$
\n" ); document.write( "Multiply by -1 both sides
\n" ); document.write( " $\"+b+=+ac%2F%28c-a%29\"$
\n" ); document.write( " \n" ); document.write( "

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