document.write( "Question 1025732: Solve the system of equations for x and y :\r
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document.write( "2x+4y=76
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document.write( "y=3/4x+4\r
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document.write( "x=
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document.write( "y= \n" );
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Algebra.Com's Answer #641039 by Cromlix(4381)![]() ![]() You can put this solution on YOUR website! Hi there, \n" ); document.write( "2x+4y=76 \n" ); document.write( "y=3/4x+4 \n" ); document.write( "Sort \n" ); document.write( "2x + 4y = 76.......(1) \n" ); document.write( "-3/4x + y = 4......(2) \n" ); document.write( "Multiply Eq(2) by 4 \n" ); document.write( "2x + 4y = 76.......(1) \n" ); document.write( "-3x + 4y = 16......(2) \n" ); document.write( "Subtract Eq(2) from Eq(1) \n" ); document.write( "5x = 60 \n" ); document.write( "x = 12 \n" ); document.write( "Substitute x = 12 into Eq(1) \n" ); document.write( "2x + 4y = 76 \n" ); document.write( "2(12) + 4y = 76 \n" ); document.write( "24 + 4y = 76 \n" ); document.write( "4y = 76 - 24 \n" ); document.write( "4y = 52 \n" ); document.write( "y = 13 \n" ); document.write( "{12,13} \n" ); document.write( "Hope this helps :-) \n" ); document.write( " |