document.write( "Question 60856: Solve the system by addition. 5x – 3y = 13 4x – 3y = 11 \n" ); document.write( "
Algebra.Com's Answer #41842 by praseena(37)![]() ![]() ![]() You can put this solution on YOUR website! Solve the system by addition.\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " 5x – 3y = 13 ----------(1)\r \n" ); document.write( "\n" ); document.write( " 4x – 3y = 11 ----------(2)\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "subtract second equation from first equation\r \n" ); document.write( "\n" ); document.write( "===> 5x -3y - (4x - 3y ) = 13 - 11\r \n" ); document.write( "\n" ); document.write( "===> 5x - 3y -4x + 3y = 3\r \n" ); document.write( "\n" ); document.write( "==> 1x = 3 \r \n" ); document.write( "\n" ); document.write( "==> x = 3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "thus we got the value x = 3\r \n" ); document.write( "\n" ); document.write( "now substitute this value any one of the given equations.\r \n" ); document.write( "\n" ); document.write( "here let us put x = 3 in the first equation, 5x -3y\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "==> 5* 3 - 3*y = 13\r \n" ); document.write( "\n" ); document.write( "==> 15 -3y = 13\r \n" ); document.write( "\n" ); document.write( "==> 15 -13 = 3y\r \n" ); document.write( "\n" ); document.write( "==> 2 = 3y\r \n" ); document.write( "\n" ); document.write( "==> y = 2/3\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "so the solution for this pair of equations is,\r \n" ); document.write( "\n" ); document.write( " x = 3\r \n" ); document.write( "\n" ); document.write( " y = 2/3 \n" ); document.write( " \n" ); document.write( " |