document.write( "Question 147443: 26) Find values of 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\r
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\n" ); document.write( "\n" ); document.write( "Can someone please show how to solve this problem. I am stuck.
\n" ); document.write( "v/r
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Algebra.Com's Answer #107815 by Nate(3500)\"\" \"About 
You can put this solution on YOUR website!
Plug x = -3 and y = 4 into each:
\n" ); document.write( "-15 + 28 = b
\n" ); document.write( "-3m + 4 = 22
\n" ); document.write( "so:
\n" ); document.write( "13 = b
\n" ); document.write( "m = -6
\n" ); document.write( "now:
\n" ); document.write( "5x + 7y = 13
\n" ); document.write( "-6x + y = 22
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