document.write( "Question 113675: Please help.\r
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document.write( "Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.\r
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document.write( "2x + 3y = 1
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document.write( "5x + 3y = 16\r
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document.write( "Thanks
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document.write( "JMS \n" );
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Algebra.Com's Answer #82742 by Adam(64) ![]() You can put this solution on YOUR website! Multiply the second equation by -1 \n" ); document.write( "and get\r \n" ); document.write( "\n" ); document.write( "2x + 3y = 1 \n" ); document.write( "-5x - 3y = -16\r \n" ); document.write( "\n" ); document.write( "add second equation to first\r \n" ); document.write( "\n" ); document.write( "-3x + 0y = -15 \n" ); document.write( "-3x = -15 \n" ); document.write( "3x = 15 \n" ); document.write( "x = 5\r \n" ); document.write( "\n" ); document.write( "substitute this into any of the original equations \n" ); document.write( "2*5 + 3y = 1 \n" ); document.write( "3y = -9 \n" ); document.write( "y = -3\r \n" ); document.write( " \n" ); document.write( " \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |