document.write( "Question 61042: Instructions: solve each system by the eliminsation method.\r
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document.write( "What is the solution for x-y=4
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document.write( " x-y=-3 \n" );
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Algebra.Com's Answer #41984 by funmath(2933)![]() ![]() ![]() You can put this solution on YOUR website! Instructions: solve each system by the eliminsation method.\r \n" ); document.write( "\n" ); document.write( "What is the solution for x-y=4 \n" ); document.write( " x-y=-3 \n" ); document.write( "Don't freak out, but this one has no solution. If you try to eliminate either variable both go and you get 0=7 or 0=-7. Graphically, these lines are parallel and will never intersect. \n" ); document.write( "Multiply the top equation by -1 and add them together. \n" ); document.write( "-1(x-y)=-1(4)--->-x+y=-4 \n" ); document.write( ": \n" ); document.write( "-x+y=-4 \n" ); document.write( "x-y=-3 \n" ); document.write( "_______ \n" ); document.write( "0+0=-7 \n" ); document.write( "0=-7 No solution. \n" ); document.write( "Happy Calculating!!! \n" ); document.write( " |