document.write( "Question 1079739: If the slope of the line determined by the points (x,5) and (2,8) is -3, find x? \n" ); document.write( "

Algebra.Com's Answer #693963 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
( x,5 ), ( 2,8 )
\n" ); document.write( "The slope is [ change in y ] / [ change in x ]
\n" ); document.write( " $\"+%28+8+-+5+%29+%2F+%28+2+-+x+%29+=+-3+\"$
\n" ); document.write( " $\"+3+%2F+%28+2+-+x+%29+=+-3+\"$
\n" ); document.write( "Multiply both sides by $\"+2-x+\"$
\n" ); document.write( " $\"+3+=+-3%2A%28+2+-+x+%29+\"$
\n" ); document.write( " $\"+3+=+-6+%2B+3x+\"$
\n" ); document.write( " $\"+3x+=+3+%2B+6+\"$
\n" ); document.write( " $\"+3x+=+9+\"$
\n" ); document.write( " $\"+x+=+3+\"$
\n" ); document.write( "----------------
\n" ); document.write( "check answer:
\n" ); document.write( " $\"+%28+8+-+5+%29+%2F+%28+2+-+x+%29+=+-3+\"$
\n" ); document.write( " $\"+%28+8+-+5+%29+%2F+%28+2+-+3+%29+=+-3+\"$
\n" ); document.write( " $\"+3+%2F+%28-1%29+=+-3+\"$
\n" ); document.write( " $\"+3+=+%28-1%29%2A%28-3%29+\"$
\n" ); document.write( " $\"+3+=+3+\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );