document.write( "Question 81651: Find values for m and b in the following system so that the solution to the system is (-3,4)\r
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document.write( "5x + 7y = b
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document.write( "mx + y = 22 \n" );
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Algebra.Com's Answer #58487 by rapaljer(4671)![]() ![]() You can put this solution on YOUR website! If (-3,4) is a solution of this system of equations, then x=-3 and y=4. Just substitute these values of x and y into the two equations. How does that Glade commercial go in the the USA? \"Plug it in, plug it in!!!\"\r \n" ); document.write( "\n" ); document.write( "5x + 7y = b \n" ); document.write( "mx + y = 22\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "5(-3) + 7(4) = b \n" ); document.write( "m(-3) + 4 = 22\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The first equation solves for b:\r \n" ); document.write( "\n" ); document.write( "-15 + 28 = b \n" ); document.write( "13 = b\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "The second equation solves for m: \n" ); document.write( "-3m + 4 = 22 \n" ); document.write( "-3m = 18 \n" ); document.write( "m=-6\r \n" ); document.write( " \n" ); document.write( "\n" ); document.write( "R^2 at SCC \n" ); document.write( " \n" ); document.write( " |