document.write( "Question 189479: 2x+2y=16
\n" ); document.write( "2x+6y=28
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Algebra.Com's Answer #142149 by jojo14344(1513) $\"\"$ $\"About$

You can put this solution on YOUR website!

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\n" ); document.write( "Given $\"system%282x%2B2y=16%28red%28EQN1%29%29%2C2x%2B6y=28%28red%28EQN2%29%29%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "In $\"red%28EQN1%29\"$ we get,
\n" ); document.write( " $\"2y=-2x%2B16\"$ ---> $\"cross%282%29y%2Fcross%282%29=%28-2x%2B16%29%2F2=%28-2%2F2%29x%2B16%2F2\"$
\n" ); document.write( " $\"y=-x%2B8\"$ $\"red%28EQN3%29\"$ , subst. in $\"red%28EQN2%29\"$ :\r
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\n" ); document.write( "\n" ); document.write( " $\"2x%2B6%28red%28-x%2B8%29%29=28\"$
\n" ); document.write( " $\"2x-6x%2B48=28\"$ ----> $\"-4x=28-48=-20\"$ ---> $\"cross%28-4%29x%2Fcross%28-4%29=cross%28-20%295%2Fcross%28-4%29\"$
\n" ); document.write( " $\"red%28x=5%29\"$ , subst. in $\"red%28EQN3%29\"$ :\r
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\n" ); document.write( "\n" ); document.write( " $\"y=-red%285%29%2B8=red%283%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "Then, these two lines intersect at point (5,3)\r
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\n" ); document.write( "\n" ); document.write( "We'll see,
\n" ); document.write( " --->RED=EQN1; GREEN=EQN2\r
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\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Jojo\r
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