document.write( "Question 458244: 5 over z+7= 4 over z-4 \n" ); document.write( "

Algebra.Com's Answer #314331 by stanbon(75887) $\"\"$ $\"About$

You can put this solution on YOUR website!
5 over z+7= 4 over z-4
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\n" ); document.write( "5/(z+7) = 4/(z-4)
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\n" ); document.write( "Cross-multiply and solve for \"z\":
\n" ); document.write( "5(z-4) = 4(z+7)
\n" ); document.write( "5z-20 = 4z+28
\n" ); document.write( "z = 48
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
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