document.write( "Question 236838: algebra inverse function question\r
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document.write( "how do I solve 2x+1/x-1 for the inverse when I can't get y by itself when I replace all of the x's with y's to find the inverse?
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document.write( "help! \n" );
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Algebra.Com's Answer #174213 by edjones(8007)![]() ![]() You can put this solution on YOUR website! f(x)=(2x+1)/(x-1) \n" ); document.write( "y=( 2x+1)/(x-1) \n" ); document.write( "y(x-1)=2x+1 Now we solve for x. \n" ); document.write( "xy-y=2x+1 \n" ); document.write( "xy-2x=y+1 Get the x's on one side. \n" ); document.write( "x(y-2)=y+1 \n" ); document.write( "x=(y+1)/(y-2) \n" ); document.write( "y=(x+1)/(x-2) Switch x and y \n" ); document.write( " \n" ); document.write( ". \n" ); document.write( "Ed \n" ); document.write( " |