document.write( "Question 669066: A line through the points (9,2) and (7,x) has a slope of 7/3. Find x.\r
\n" ); document.write( "\n" ); document.write( "I think this is how to start. (7-2/7-x)=7/3\r
\n" ); document.write( "\n" ); document.write( "(7/7-x)=7/3\r
\n" ); document.write( "\n" ); document.write( "7-x-=7
\n" ); document.write( "-7 -7
\n" ); document.write( "_________
\n" ); document.write( "-x=0
\n" ); document.write( "-- --
\n" ); document.write( "- 1 -1\r
\n" ); document.write( "\n" ); document.write( "x=o
\n" ); document.write( "

Algebra.Com's Answer #416047 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
A line through the points (9,2) and (7,x) has a slope of 7/3. Find x.\r
\n" ); document.write( "\n" ); document.write( "I think this is how to start. (7-2/7-x)=7/3\r
\n" ); document.write( "\n" ); document.write( "(7/7-x)=7/3\r
\n" ); document.write( "\n" ); document.write( "7-x-=7
\n" ); document.write( "-7 -7
\n" ); document.write( "_________
\n" ); document.write( "-x=0
\n" ); document.write( "-- --
\n" ); document.write( "- 1 -1\r
\n" ); document.write( "\n" ); document.write( "x=o
\n" ); document.write( "==================
\n" ); document.write( "A line through the points (9,2) and (7,x) has a slope of 7/3. Find x.
\n" ); document.write( "---------
\n" ); document.write( "Not a well posed problem, it has x in the y position.
\n" ); document.write( "If it said:
\n" ); document.write( "\"A line through the points (9,2) and (7,y) has a slope of 7/3. Find y.\" it would make more sense.
\n" ); document.write( "-------------
\n" ); document.write( "Slope m = diffy/diffx = (2-y)/(9-7) = 7/3
\n" ); document.write( "(2-y)/(9-7) = 7/3
\n" ); document.write( "Cross multiply
\n" ); document.write( "3(2-y) = 2*7
\n" ); document.write( "6-3y = 14
\n" ); document.write( "-3y = 8
\n" ); document.write( "y = -8/3
\n" ); document.write( "
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