document.write( "Question 945306: Find the y coordinate of the point of intersection of the graphs of 2x+3y=13 and 2(2x+1)=y. Thanks for your help. \n" ); document.write( "
Algebra.Com's Answer #576544 by Fombitz(32388)\"\" \"About 
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Substitute the second equation into the first.
\n" ); document.write( "\"2x%2B3%282%282x%2B1%29%29=13\"
\n" ); document.write( "\"2x%2B12x%2B6=13\"
\n" ); document.write( "\"14x=7\"
\n" ); document.write( "\"x=1%2F2\"
\n" ); document.write( "Then,
\n" ); document.write( "\"y=2%282%281%2F2%29%2B1%29\"
\n" ); document.write( "\"y=2%281%2B1%29\"
\n" ); document.write( "\"y=2%282%29\"
\n" ); document.write( "\"y=4\"\r
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