document.write( "Question 981026: rootx y=11.......(1) and rootx-y=7......(2) find the valu of x and y \n" ); document.write( "

Algebra.Com's Answer #602051 by Fombitz(32388) $\"\"$ $\"About$

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$\"sqrt%28x%2By%29=11\"$
\n" ); document.write( " $\"sqrt%28x-y%29=7\"$
\n" ); document.write( "Square both sides of each equation.
\n" ); document.write( " $\"x%2By=121\"$
\n" ); document.write( " $\"x-y=49\"$
\n" ); document.write( "Now add,
\n" ); document.write( " $\"x%2By%2Bz-y=121%2B49\"$
\n" ); document.write( " $\"2x=170\"$
\n" ); document.write( " $\"x=85\"$
\n" ); document.write( "Then,
\n" ); document.write( " $\"85%2By=121\"$
\n" ); document.write( " $\"y=36\"$ \n" ); document.write( "

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