document.write( "Question 154496: Find the value of b so that the graph of bx+5y=8 and has a slope of 4. \n" ); document.write( "
Algebra.Com's Answer #412043 by kevwill(135)\"\" \"About 
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The original solver started out right, but got a little careless with her signs. \r
\n" ); document.write( "\n" ); document.write( "\"bx+%2B+5y+=+8\"
\n" ); document.write( "\"5y+=+-bx+%2B+8\"
\n" ); document.write( "\"5y%2F5+=+-bx%2F5+%2B+8%2F5\"
\n" ); document.write( "\"y+=+-%28b%2F5%29%2Ax+%2B+8%2F5\"
\n" ); document.write( "Given that we need to find b such that the slope is 4, we have
\n" ); document.write( "\"-%28b%2F5%29+=+4\"
\n" ); document.write( "\"-%28b%2F5%29%2A5+=+4%2A5\"
\n" ); document.write( "\"-b+=+20\"
\n" ); document.write( "\"b+=+-20\"
\n" ); document.write( "So the correct answer is b = -20, not b=20 as stated by the original solver.\r
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