document.write( "Question 332233: Can someone show me how to use the elimination method to solve this problem. The solution says it is (4y+1,y) for any real numbers. I just don't kow how they go it. Thanks\r
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document.write( "2x-8y=2
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document.write( "3x-12y=3 \n" );
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Algebra.Com's Answer #238101 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! It turns out that this system has an infinite number of solutions. Basically one equation is just the other in a different form. So to solve this \"system\", we just need to solve for one variable. So what the book did was solve for 'y' (in either equation). \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So take \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So every 'x' coordinate of the solution is simply equal to 4 times the y coordinate plus one.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So recall that any solution of a system is of the form (x,y) and we know that \n" ); document.write( " \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Note: there are other ways to display the solution, but you essentially get the same thing. \n" ); document.write( " |