document.write( "Question 761100: what is the value of x if the slope of the line through A(3,-2) B(x,-5)is -3? \n" ); document.write( "
Algebra.Com's Answer #463031 by Cromlix(4381)\"\" \"About 
You can put this solution on YOUR website!
Using y2 - y1/x2 - x1 = -3
\n" ); document.write( " -5 -(-2)/x - 3 = -3
\n" ); document.write( " -5 + 2/ x - 3 = -3
\n" ); document.write( " -3/ x - 3 = -3
\n" ); document.write( "Cross multiply
\n" ); document.write( " -3 = -3(x - 3)
\n" ); document.write( " -3 = -3x + 9
\n" ); document.write( " -3x = -3 - 9
\n" ); document.write( " -3x = -12
\n" ); document.write( " x = 4
\n" ); document.write( "Proof:
\n" ); document.write( " y2 - y1/x2 - x1 = -3
\n" ); document.write( " -5 -(-2)/4 - 3 = -3
\n" ); document.write( " -3/1 = -3.
\n" ); document.write( "Hope this helps.
\n" ); document.write( ":-) \n" ); document.write( "
\n" );