document.write( "Question 246071: In a building with floors 1 through 7, on which floor would you be if the walk to the seventh floor is twice as long as the walk to the first floor? \n" ); document.write( "
Algebra.Com's Answer #179741 by richwmiller(17219)\"\" \"About 
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let x = current floor
\n" ); document.write( "7-x is the distance from the current floor to floor 7
\n" ); document.write( "x-1 is the distance from the current floor to the first floor
\n" ); document.write( "7-x=2y
\n" ); document.write( "substitute
\n" ); document.write( "7-x=2(x-1)
\n" ); document.write( "7-x=2x-2
\n" ); document.write( "add 2 to both sides
\n" ); document.write( "9-x=2x
\n" ); document.write( "add x to both sides
\n" ); document.write( "9=3x
\n" ); document.write( "divide by 3
\n" ); document.write( "3=x
\n" ); document.write( "You are on the third floor.
\n" ); document.write( "check\r
\n" ); document.write( "\n" ); document.write( "3-1=2
\n" ); document.write( "7-3=4
\n" ); document.write( "4 is twice 2
\n" ); document.write( "ok
\n" ); document.write( "
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