document.write( "Question 279249: How do I solve
\n" ); document.write( "7/x = 9/x - 1/11?\r
\n" ); document.write( "\n" ); document.write( "6/z+8 = 5/z-3?\r
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\n" ); document.write( "\n" ); document.write( "4-s/7-s = 3/s-7?
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Algebra.Com's Answer #203070 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
How do I solve
\n" ); document.write( "7/x = 9/x - 1/11?
\n" ); document.write( "Multiply thru by 11x to get:
\n" ); document.write( "77 = 99 - x
\n" ); document.write( "x = 99-77
\n" ); document.write( "x = 22
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\n" ); document.write( "6/z+8 = 5/z-3?
\n" ); document.write( "Cross-multiply:
\n" ); document.write( "6(z-3) = 5(z+8)
\n" ); document.write( "6z-18 = 5z+40
\n" ); document.write( "z = 58
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\n" ); document.write( "\n" ); document.write( "4-s/7-s = 3/s-7?
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\n" ); document.write( "Modify the fraction on the left by multiplying numerator and denominator by -1.
\n" ); document.write( "{(s-4)/(s-7)]= 3/(s-7)
\n" ); document.write( "Multiply both sides by s-7 to get:
\n" ); document.write( "s-4 = 3
\n" ); document.write( "s = 7
\n" ); document.write( "But s cannot be seven because the denominator is s-7 and
\n" ); document.write( "that would be zero if s = 7.
\n" ); document.write( "Conclusion: No solution
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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