document.write( "Question 74292: Find values for m and b in the following system so that the solution to the system
\n" ); document.write( "is (-3,4).\r
\n" ); document.write( "\n" ); document.write( "5x+7y=b
\n" ); document.write( "mx+y=22\r
\n" ); document.write( "\n" ); document.write( "Please help!!
\n" ); document.write( "Thanks so much!!!
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Algebra.Com's Answer #53285 by funmath(2933)\"\" \"About 
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Find values for m and b in the following system so that the solution to the system
\n" ); document.write( "is (-3,4).\r
\n" ); document.write( "\n" ); document.write( "5x+7y=b
\n" ); document.write( "mx+y=22
\n" ); document.write( ":
\n" ); document.write( "Let x=-3 and y=4 in the first equation.
\n" ); document.write( "5(-3)+7(4)=b
\n" ); document.write( "-15+28=b
\n" ); document.write( "13=b
\n" ); document.write( ":
\n" ); document.write( "Let x=-3 and y=4 in the second equation.
\n" ); document.write( "m(-3)+4=22
\n" ); document.write( "-3m+4=22
\n" ); document.write( "-3m+4-4=22-4
\n" ); document.write( "-3m=18
\n" ); document.write( "-3m/-3=18/-3
\n" ); document.write( "m=-6
\n" ); document.write( ":
\n" ); document.write( "Happy Calculating!!!!
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