document.write( "Question 272510: Solve the system of equations using the Addition/Elimination Method.\r
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document.write( "x – 3y = 3 \r
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document.write( "0.5x + 2y = –0.25\r
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Algebra.Com's Answer #199332 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! Solve the system of equations using the Addition/Elimination Method. \r \n" ); document.write( "\n" ); document.write( "x – 3y = 3 \n" ); document.write( "0.5x + 2y = –0.25 \n" ); document.write( "----------------------- \n" ); document.write( "Multiply thru the 1st Equation by 5 \n" ); document.write( "Multiply thru the 2nd Equation by 10 \n" ); document.write( "------------------------------------------- \n" ); document.write( "5x - 15y = 15 \n" ); document.write( "5x + 20y = -2.5 \n" ); document.write( "----------------------- \n" ); document.write( "Subtract the 1st equation from the 2nd and solve for \"y\": \n" ); document.write( "35y = -17.5 \n" ); document.write( "y = -17.5/35 = -1/2 \n" ); document.write( "------------------------ \n" ); document.write( "Since x -3y = 3, x = 3(-1/2)+3 ; x = 3/2\r \n" ); document.write( "\n" ); document.write( "============================================= \n" ); document.write( "Solution : x = 3/2 ; y = -1/2 \n" ); document.write( "============================================= \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |