document.write( "Question 248099: The sum of two numbers is 90. The difference is 18. Find the numbers \n" ); document.write( "

Algebra.Com's Answer #180866 by tutorcecilia(2152) $\"\"$ $\"About$

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Let x+y=90 and x-y=18
\n" ); document.write( "Use any method to solve for the system of equations. I will use the subraction method:
\n" ); document.write( "x+y=90
\n" ); document.write( "x-y=18
\n" ); document.write( "________
\n" ); document.write( "2x=108
\n" ); document.write( ".
\n" ); document.write( "2x=108
\n" ); document.write( "2x/2=108/2
\n" ); document.write( "x=54
\n" ); document.write( "So,
\n" ); document.write( "54+y=90
\n" ); document.write( "y=36
\n" ); document.write( "Answers
\n" ); document.write( "x=54 and y = 36
\n" ); document.write( "Check the answers by plugging them back into the origina two equations. \n" ); document.write( "

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