document.write( "Question 37137This question is from textbook McDougal Littell
\n" ); document.write( ": 
Solve for x:\r\n" );
document.write( "\r\n" );
document.write( "   1         1          22\r\n" );
document.write( "——————— + ——————— = —————————\r\n" );
document.write( " x - 4     x + 4     x² - 16
\n" ); document.write( "
Algebra.Com's Answer #22816 by AnlytcPhil(1806)\"\" \"About 
You can put this solution on YOUR website!
Solve for x:\r\n" );
document.write( "\r\n" );
document.write( "   1         1          22\r\n" );
document.write( "——————— + ——————— = —————————\r\n" );
document.write( " x - 4     x + 4     x² - 16\r\n" );
document.write( "\r\n" );
document.write( "Factor the denominator on the right\r\n" );
document.write( "\r\n" );
document.write( "   1         1             22\r\n" );
document.write( "——————— + ——————— = ————————————————\r\n" );
document.write( " x - 4     x + 4     (x - 4)(x + 4)\r\n" );
document.write( "\r\n" );
document.write( "Multiply each fraction through by the LCD = (x - 4)(x + 4)\r\n" );
document.write( "\r\n" );
document.write( "Multiply first term on left by the LCD/1\r\n" );
document.write( "                                           1\r\n" );
document.write( "   1       (x - 4)(x + 4)       1       (x - 4)(x + 4)\r\n" );
document.write( "——————— · ———————————————— = ——————— · ———————————————— =  (x + 4)  \r\n" );
document.write( " x - 4           1             x - 4           1 \r\n" );
document.write( "                                 1\r\n" );
document.write( "Multiply second term on left by the LCD/1\r\n" );
document.write( "                                                  1\r\n" );
document.write( "   1       (x - 4)(x + 4)       1       (x - 4)(x + 4)\r\n" );
document.write( "——————— · ———————————————— = ——————— · ———————————————— =  (x - 4)  \r\n" );
document.write( " x + 4           1             x + 4           1 \r\n" );
document.write( "                                 1\r\n" );
document.write( "\r\n" );
document.write( "Multiply term on right by LCD/1\r\n" );
document.write( "\r\n" );
document.write( "                                                                 1  \r\n" );
document.write( "       22           (x - 4)(x + 4)           22           (x - 4)(x + 4)\r\n" );
document.write( "———————————————— · ———————————————— = ———————————————— · ———————————————— = 22\r\n" );
document.write( " (x - 4)(x + 4)            1           (x - 4)(x + 4)            1 \r\n" );
document.write( "                                              1\r\n" );
document.write( "\r\n" );
document.write( "So the equation is now\r\n" );
document.write( "\r\n" );
document.write( "             (x + 4) + (x - 4) = 22\r\n" );
document.write( "                 x + 4 + x - 4 = 22\r\n" );
document.write( "                            2x = 22\r\n" );
document.write( "                             x = 11 \r\n" );
document.write( "\r\n" );
document.write( "Edwin\r\n" );
document.write( "AnlytcPhil@aol.com
\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
\n" );