document.write( "Question 46580This question is from textbook
\n" ); document.write( ": Find the values for m and b in the following system so that the solution to the system is (-3, 4).
\n" ); document.write( "5x + 7y =b
\n" ); document.write( "mx + y= 22 \n" ); document.write( "

Algebra.Com's Answer #30876 by josmiceli(19441) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"5x+%2B+7y+=+b\"$
\n" ); document.write( " $\"mx+%2B+y+=+22\"$
\n" ); document.write( "a solution is (-3,4)
\n" ); document.write( " $\"5%2A%28-3%29+%2B+7%2A4+=+b\"$
\n" ); document.write( " $\"-15+%2B+28+=+b\"$
\n" ); document.write( " $\"b+=+13\"$
\n" ); document.write( " $\"-3m+%2B+4+=+22\"$
\n" ); document.write( " $\"3m+=+4+-+22\"$
\n" ); document.write( " $\"3m+=+-18\"$
\n" ); document.write( " $\"m+=+-6\"$
\n" ); document.write( "check
\n" ); document.write( "is (-3,4) a solution?
\n" ); document.write( " $\"5x+%2B+7y+=+b\"$
\n" ); document.write( " $\"5%2A%28-3%29+%2B+7%2A%284%29+=+13\"$
\n" ); document.write( " $\"-15+%2B+28+=+13\"$
\n" ); document.write( " $\"13+=+13\"$
\n" ); document.write( "OK
\n" ); document.write( " $\"mx+%2B+y+=+22\"$
\n" ); document.write( " $\"-6%2A%28-3%29+%2B+4+=+22\"$
\n" ); document.write( " $\"18+%2B+4+=+22\"$
\n" ); document.write( " $\"22+=+22\"$
\n" ); document.write( "OK \n" ); document.write( "

\n" );