document.write( "Question 27191: 5x + 7y = 19 find three solutions
\n" ); document.write( " \n" ); document.write( "
Algebra.Com's Answer #14798 by JayJay_T(6)\"\" \"About 
You can put this solution on YOUR website!
Try to find a x-value at which the 19-5x part can easily be divided by 7:\r
\n" ); document.write( "\n" ); document.write( "5x + 7y = 19\r
\n" ); document.write( "\n" ); document.write( "=> 7y = 19 - 5x\r
\n" ); document.write( "\n" ); document.write( "So suppose x = -6\r
\n" ); document.write( "\n" ); document.write( "=> 7y = 19 - (5.-6)
\n" ); document.write( "=> 7y = 19 - (-30)
\n" ); document.write( "=> 7y = 19 - -30
\n" ); document.write( "=> 7y = 19 + 30
\n" ); document.write( "=> 7y = 49
\n" ); document.write( "=> y = 49/7
\n" ); document.write( "=> y = 7\r
\n" ); document.write( "\n" ); document.write( "Solution: (-6,7)\r
\n" ); document.write( "\n" ); document.write( "Other solutions via the same principle: (-12,11) and (8,-3)\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );