document.write( "Question 176283This question is from textbook McDougal Littell MATH
\n" ); document.write( ": x+y=2
\n" ); document.write( "2x+7y=9
\n" ); document.write( "

Algebra.Com's Answer #131374 by jojo14344(1513)\"\" \"About 
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\n" ); document.write( "Line Equations:
\n" ); document.write( "\"x%2By=2\", EQN 1
\n" ); document.write( "\"2x%2B7y=9\", EQN 2
\n" ); document.write( "In EQN 1, we get:
\n" ); document.write( "\"y=2-x\", EQN 3 ------> subst. in EQN 2:
\n" ); document.write( "\"2x%2B7%282-x%29=9\"
\n" ); document.write( "\"2x%2B14-7x=9\", combine similar terms
\n" ); document.write( "\"14-9=7x-2x\"
\n" ); document.write( "\"5=5x\"------>\"cross%285%291%2Fcross%285%29=cross%285%29x%2Fcross%285%29\"
\n" ); document.write( "\"highlight%28x=1%29\", subst. in EQN 3:
\n" ); document.write( "\"y=2-1\"
\n" ); document.write( "\"highlight%28y=1%29\"
\n" ); document.write( "We'll see the graph:
\n" ); document.write( "----> Point of Intersection (1,1), RED>>EQN1; GREEN>>EQN2
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
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