document.write( "Question 160931: 2x-4y=6
\n" ); document.write( "3x+y=-5
\n" ); document.write( "what are the coordinates of the point of intersection?
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Algebra.Com's Answer #118598 by KnightOwlTutor(293)\"\" \"About 
You can put this solution on YOUR website!
2x-4y=6
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Solved by pluggable solver: SOLVE linear system by SUBSTITUTION
Solve:
\n" ); document.write( " \"+system%28+%0D%0A++++2%5Cx+%2B+-4%5Cy+=+6%2C%0D%0A++++3%5Cx+%2B+1%5Cy+=+-5+%29%0D%0A++\"We'll use substitution. After moving -4*y to the right, we get:
\n" ); document.write( " \"2%2Ax+=+6+-+-4%2Ay\", or \"x+=+6%2F2+-+-4%2Ay%2F2\". Substitute that
\n" ); document.write( " into another equation:
\n" ); document.write( " \"3%2A%286%2F2+-+-4%2Ay%2F2%29+%2B+1%5Cy+=+-5\" and simplify: So, we know that y=-2. Since \"x+=+6%2F2+-+-4%2Ay%2F2\", x=-1.
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\n" ); document.write( " Answer: \"system%28+x=-1%2C+y=-2+%29\".
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