document.write( "Question 673326: how do i find the inverse of f(x)=-9x+1/-4x+ 6 ? \n" ); document.write( "
Algebra.Com's Answer #418718 by ReadingBoosters(3246)\"\" \"About 
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Solve for x then substitute x for the y variable.
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\n" ); document.write( "f(x) = \"%28-9x%2B1%29%2F%28-4x%2B6%29\"
\n" ); document.write( "y = \"%28-9x%2B1%29%2F%28-4x%2B6%29\"
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\n" ); document.write( "Multiply both sides by (-4x+6) to be rid of the fraction
\n" ); document.write( "(-4x+6)y = -9x+1
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\n" ); document.write( "Distribute y
\n" ); document.write( "-4xy + 6y = -9x + 1
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\n" ); document.write( "Isolate the x variable on one side
\n" ); document.write( "-4xy + 9x = 1 - 6y
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\n" ); document.write( "Factor out the x variable
\n" ); document.write( "x(-4y + 9) = 1 - 6y
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\n" ); document.write( "Divide both sides by (-4y+9) to isolate x
\n" ); document.write( "\"x+=+%281-6y%29%2F%28-4y%2B9%29\"
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\n" ); document.write( "\"f%5E-1\" = \"%281-6x%29%2F%28-4x%2B9%29\"\r
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\n" ); document.write( "-Reading Boosters
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