document.write( "Question 553314: In a hall, there are 180 seats. The number of seats in each row is 8 more than the number of rows. Find the number of rows \n" ); document.write( "
Algebra.Com's Answer #360792 by mananth(16946)\"\" \"About 
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rows be x
\n" ); document.write( "seats in each row = x+8\r
\n" ); document.write( "\n" ); document.write( "seats = 180\r
\n" ); document.write( "\n" ); document.write( "x(x+8)=180
\n" ); document.write( "x^2+8x=180
\n" ); document.write( "x^2+8x-180=0\r
\n" ); document.write( "\n" ); document.write( "x^2+18x-10x-180=0
\n" ); document.write( "x(x+18)-10(x+18)=0
\n" ); document.write( "(x+18)(x-10)=0
\n" ); document.write( "x= 10 number of rows
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