document.write( "Question 504029: 7 over y-1 + 1 over y = 9 over 8. my work so far 7(8)(y-1)y + 8(y-1)y = 9(8)(y-1)multiply each term by the LCD 54y+8y-8=9(y-1)y. need help from here please show work so I can understand how to do it myself thanks. \n" ); document.write( "
Algebra.Com's Answer #339495 by jim_thompson5910(35256)![]() ![]() ![]() You can put this solution on YOUR website! 7/(y-1)+1/y=9/8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "56y + 8(y-1) = 9y(y-1) ... you made a mistake/typo on this line (should be 56y at the beginning and NOT 54y)\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "56y + 8y-8 = 9y^2-9y\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "64y-8 = 9y^2-9y\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "0 = 9y^2-9y-64y+8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "0 = 9y^2-73y+8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9y^2-73y+8 = 0\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9y^2-72y-y+8 = 0\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(9y^2-72y)+(-y+8) = 0\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9y(y-8)-1(y-8) = 0\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "(9y-1)(y-8) = 0\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9y-1 = 0 or y-8 = 0 \r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "9y = 1 or y = 8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "y = 1/9 or y = 8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "So the solutions are y = 1/9 or y = 8\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Let me know if you need me to go over a certain step/line of the work above.\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "If you need more help, feel free to email me at jim_thompson5910@hotmail.com \n" ); document.write( "or you can visit my website here: http://www.freewebs.com/jimthompson5910/home.html\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Thanks,\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "Jim \n" ); document.write( " |