document.write( "Question 256334: Solve for x and y.
\n" ); document.write( "3x + 2y = 100
\n" ); document.write( "4x + 3y = 135 \n" ); document.write( "

Algebra.Com's Answer #188497 by Fombitz(32388) $\"\"$ $\"About$

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$\"3x+%2B+2y+=+100\"$
\n" ); document.write( " $\"4x+%2B+3y+=+135\"$
\n" ); document.write( "Multiply eq. 1 by 4 and eq. 2 by (-3) and add them to get rid of x.
\n" ); document.write( " $\"12x%2B8y%2B%28-12x-9y%29=400%2B%28-405%29%0D%0A%7B%7B%7B-y=-5\"$
\n" ); document.write( " $\"y=5\"$
\n" ); document.write( "Then use either equation to solve for x.
\n" ); document.write( " $\"3x%2B2y=100\"$
\n" ); document.write( " $\"3x%2B10=100\"$
\n" ); document.write( " $\"3x=90\"$
\n" ); document.write( " $\"x=30\"$ \n" ); document.write( "

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