document.write( "Question 326195: A line contains (-3,5) and (x,9). If the slope is 2, find x. \n" ); document.write( "
Algebra.Com's Answer #233487 by nyc_function(2741)\"\" \"About 
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Let m = slope = 2\r
\n" ); document.write( "\n" ); document.write( "m = (difference of y coordinates)/(difference of x coordinates)\r
\n" ); document.write( "\n" ); document.write( "2 = (9 - 5)/(x - (-3))\r
\n" ); document.write( "\n" ); document.write( "2 = 4/(x + 3)\r
\n" ); document.write( "\n" ); document.write( "2(x + 3) = 4\r
\n" ); document.write( "\n" ); document.write( "2x + 3 = 4\r
\n" ); document.write( "\n" ); document.write( "2x = 4 - 3\r
\n" ); document.write( "\n" ); document.write( "2x = 1\r
\n" ); document.write( "\n" ); document.write( "x = 1/2\r
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