document.write( "Question 1035646: the sum of the seventh terms of a linear sequence is 38 and the ninth term is 37. find the sequence ? \n" ); document.write( "
Algebra.Com's Answer #650288 by Boreal(15235)![]() ![]() You can put this solution on YOUR website! a7=a1+6d=38 \n" ); document.write( "a9=a1+8d=37 \n" ); document.write( "subtract the second from the first \n" ); document.write( "-2d=1 \n" ); document.write( "d=(-1/2) \n" ); document.write( "substitute back in \n" ); document.write( "38=a1+-3; a1=41 \n" ); document.write( "a7=38 \n" ); document.write( "a9=37 \n" ); document.write( "41+(-1/2)an is the sequence \n" ); document.write( " \n" ); document.write( " |