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Billy bob says he has 8 times as many sisters as brothers.
\n" ); document.write( " Bobbie sue (billy bob's sister) says the number of her brothers is equal to the number of her sisters minus 5.
\n" ); document.write( " How many boys and girls are in the family?
\n" ); document.write( ":
\n" ); document.write( "let b = no. of boys
\n" ); document.write( "lest s = no. of girls
\n" ); document.write( ":
\n" ); document.write( "\"Billy bob says he has 8 times as many sisters as brothers.\"
\n" ); document.write( "s = 8(b-1)
\n" ); document.write( "s = 8b - 8
\n" ); document.write( "\"Bobbie sue (billy bob's sister) says the number of her brothers is equal to the number of her sisters minus 5.\"
\n" ); document.write( "b = s - 1 - 5
\n" ); document.write( "b = s - 6
\n" ); document.write( ":
\n" ); document.write( "replace b in the 1st equation with (s-6)
\n" ); document.write( "s = 8(s-6) - 8
\n" ); document.write( "s = 8s - 48 - 8\r
\n" ); document.write( "\n" ); document.write( "s - 8s = -56
\n" ); document.write( "-7s = -56
\n" ); document.write( "s = -56/-7
\n" ); document.write( "s = 8 girls
\n" ); document.write( "then
\n" ); document.write( "b = 8 - 6
\n" ); document.write( "b = 2 boys
\n" ); document.write( ":
\n" ); document.write( "see if that works in the statment (Bill has 1 brother)
\n" ); document.write( "\"Billy bob says he has 8 times as many sisters as brothers.\" 8*1 = 8 sisters
\n" ); document.write( ":
\n" ); document.write( "and Bobbies has 7 sisters
\n" ); document.write( "\"Bobbie sue (billy bob's sister) says the number of her brothers is equal to the number of her sisters minus 5.\" two brothers \n" ); document.write( "