document.write( "Question 380909: 3x-2y=9
\n" ); document.write( "-6x+4y=1\r
\n" ); document.write( "\n" ); document.write( "I need to solve special systems. (& if it is infinitely many, only one, or none.\r
\n" ); document.write( "\n" ); document.write( "I tried to do substitution. Canceling out one variable I think the answer I got was x=6 and y=18. \r
\n" ); document.write( "\n" ); document.write( "I am not sure it is right. I look at it and it just seems to long compared to the other problems.
\n" ); document.write( "3x-2y=9
\n" ); document.write( "-3 -3
\n" ); document.write( "x-2y=3
\n" ); document.write( "-x+x-2y=3+x
\n" ); document.write( "-2y=3+x
\n" ); document.write( "----------
\n" ); document.write( "+2 +2
\n" ); document.write( "y =6+x\r
\n" ); document.write( "\n" ); document.write( "3x+y=6
\n" ); document.write( "3x+(6+x)=6
\n" ); document.write( "4x+6 =6
\n" ); document.write( "4x+6-6=6-6
\n" ); document.write( "4x = 0\r
\n" ); document.write( "\n" ); document.write( "Now it does not come out the way I had on paper. I did something wrong. Please help.\r
\n" ); document.write( "\n" ); document.write( "Thank you.
\n" ); document.write( "

Algebra.Com's Answer #270301 by mananth(16946)\"\" \"About 
You can put this solution on YOUR website!
3x-2y=9...............1
\n" ); document.write( "-6x+4y=1..............2
\n" ); document.write( "..
\n" ); document.write( "you will see that 6x is a multiple of 3x. 3x*2=6x
\n" ); document.write( "so you can eliminate x by multiplying (1) 2 and add it to (2)
\n" ); document.write( "3x*2-2*2y=2*9
\n" ); document.write( "6x-4y=18.
\n" ); document.write( "add this to (2)
\n" ); document.write( "-6x+6x-4y+4y=18+1
\n" ); document.write( "0= 19
\n" ); document.write( "..
\n" ); document.write( "The system has no solution. As you will see from the grah below. The lines are parallel.\r
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\n" ); document.write( "..\r
\n" ); document.write( "\n" ); document.write( "m.ananth@hotmail.ca
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