document.write( "Question 907688: <-W-----X-------Y-----------Z->\r
\n" ); document.write( "\n" ); document.write( "In the figure above, V, W, X, Y and Z represent points on a number line. If VW=WX=XY=YZ=3, W+Z=0 then V is
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\n" ); document.write( "d.1.5 \n" ); document.write( "
Algebra.Com's Answer #550507 by Edwin McCravy(20056)\"\" \"About 
You can put this solution on YOUR website!
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document.write( "  V   |   |   W   |   |   X   |   |   Y   |   |   Z   \r\n" );
document.write( "  ?           ?           ?           ?           ?\r\n" );
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document.write( "Since W+Z = 0, Z=-W. Z is the negative (opposite) of Z.\r\n" );
document.write( "So Z must be as far to the right of 0 as Z is to the left \r\n" );
document.write( "of 0.  That is, 0 must be at the midpoint between W and Z.\r\n" );
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document.write( "We put 0 at the midpoint between W and Z, and we have\r\n" );
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document.write( "  V   |   |   W   |   |   X   | 0 |   Y   |   |   Z  \r\n" );
document.write( "  ?           ?           ?     0     ?           ?\r\n" );
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document.write( "Since W and Z are 9 units apart, and half of 9 is 4.5,\r\n" );
document.write( "W must be at -4.5 and Z at +4.5.  So we have\r\n" );
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document.write( "  V   |   |   W   |   |   X   | 0 |   Y   |   |   Z \r\n" );
document.write( "  ?         -4.5          ?     0     ?          4.5   \r\n" );
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document.write( "Then we can fill in for the other question marks, since\r\n" );
document.write( "they are all spaced 3 between each two adjacent letters:\r\n" );
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document.write( "  V   |   |   W   |   |   X   | 0 |   Y   |   |   Z \r\n" );
document.write( "-7.5        -4.5        -1.5    0    1.5         4.5\r\n" );
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document.write( "The answer is -7.5, choice a.\r\n" );
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document.write( "Edwin
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