document.write( "Question 178227: 4x+4y= 6 3x-5y= 7 solve x, y
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Algebra.Com's Answer #133197 by jojo14344(1513)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Line Eqns:
\n" ); document.write( "\"4x%2B4y=+6\", EQN 1
\n" ); document.write( "\"+3x-5y=+7+\", EQN 2
\n" ); document.write( "solve x, y
\n" ); document.write( "In EQN 1, we get: \"4y=6-4x\" ---->\"cross%284%29y%2Fcross%284%29=%286-4x%29%2F4=%286%2F4%29-%284x%2F4%29\"---->\"y=cross%286%293%2Fcross%284%292-%28cross%284%29x%2Fcross%284%29%29\"
\n" ); document.write( "\"y=%283%2F2%29-x\", EQN 3, subst. in EQN 2:
\n" ); document.write( "\"3x-5%28%283%2F2%29-x%29=7\"
\n" ); document.write( "\"3x-%2815%2F2%29%2B5x=7\"
\n" ); document.write( "\"3x%2B5x=7%2B%2815%2F2%29\"
\n" ); document.write( "\"8x=%2814%2B15%29%2F2\"----->\"8x%2A2=29\"----->\"16x=29\"
\n" ); document.write( "\"cross%2816%29x%2Fcross%2816%29=29%2F16\"
\n" ); document.write( "\"highlight%28x=29%2F16%29\", subts. in EQN 3:
\n" ); document.write( "\"y=%283%2F2%29-%2829%2F16%29\", Get LCD
\n" ); document.write( "\"y=%2824-29%29%2F16=highlight%28-5%2F16=y%29\"
\n" ); document.write( "We'll see the graph:
\n" ); document.write( "---->RED Line>>>> EQN 1; GREEN Line>>>> EQN 2, Intersect @ point (29/16,-5/16)
\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo
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