document.write( "Question 147251: 9x-5y=-35 , 5y-9x=35. what is the solution to the system of equations? is the system consistant? \n" ); document.write( "
Algebra.Com's Answer #107629 by jim_thompson5910(35256)\"\" \"About 
You can put this solution on YOUR website!
\"5y-9x=35\" Start with the second equation.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"-9x%2B5y=35\" Rearrange the terms.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "So we have the given system of equations:\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"system%289x-5y=-35%2C-9x%2B5y=35%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Add the equations together. You can do this by simply adding the two left sides and the two right sides separately like this:\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%289x-5y%29%2B%28-9x%2B5y%29=%28-35%29%2B%2835%29\"\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%289x%2B-9x%29%2B%28-5y%2B5y%29=-35%2B35\" Group like terms.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"0x%2B0y=0\" Combine like terms. Notice how the x terms cancel out.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"0=0\"Simplify.\r
\n" ); document.write( "
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Since \"0=0\" is always true, this means that there are an infinite number of solutions. So the system is consistent and dependent.
\n" ); document.write( "
\n" ); document.write( "
\n" );