document.write( "Question 705141: Solve for \"a\": a^-1 + b^-1 = 1
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Algebra.Com's Answer #434425 by math-vortex(648)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "Hi, there--\r\n" );
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document.write( "PROBLEM:\r\n" );
document.write( "Solve for a.\r\n" );
document.write( "\"a%5E%28-1%29%2Bb%5E%28-1%29=1\"\r\n" );
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document.write( "Recall that \"a%5E%28-1%29=1%2Fa\", so\r\n" );
document.write( "\"1%2Fa%2B1%2Fb=1\"\r\n" );
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document.write( "Subtract 1/b from both sides.\r\n" );
document.write( "\"1%2Fa=1-1%2Fb\"\r\n" );
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document.write( "Rewrite the terms on the right side under a common denominator.\r\n" );
document.write( "\"1%2Fa=%28b-1%29%2Fb\"\r\n" );
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document.write( "Invert the numerator and denominator on both sides of the equation.\r\n" );
document.write( "\"a+=+b%2F%28b-1%29\"\r\n" );
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document.write( "That's it,\r\n" );
document.write( "Ms.Figgy\r\n" );
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