document.write( "Question 455326: Solve the system using the substitution method. If the system has no solution or an infinite number of solutions, state this.\r
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document.write( "-0.7x -0.1y= -15
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document.write( "0.4x +0.1y= 0.6 \n" );
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Algebra.Com's Answer #312616 by Alan3354(69443)![]() ![]() You can put this solution on YOUR website! -0.7x -0.1y = -15 \n" ); document.write( "0.4x +0.1y = 0.6 --> 0.1y = 0.6 - 0.4x \n" ); document.write( "Sub for 0.1y in the 1st eqn \n" ); document.write( "--------- \n" ); document.write( "-0.7x - (0.6-0.4x) = -15 \n" ); document.write( "-0.7x - 0.6 + 0.4x = -15 \n" ); document.write( "-0.3x - 0.6 = -15 \n" ); document.write( "3x + 6 = 150 \n" ); document.write( "x = 48 \n" ); document.write( "------ \n" ); document.write( "0.1y = 0.6 - 0.4x \n" ); document.write( "y = 6 - 4x \n" ); document.write( "y = -186 \n" ); document.write( " \n" ); document.write( " |