document.write( "Question 168299This question is from textbook Elementary and Intermediate Algebra
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document.write( ": Elementary and Intermediate Algebra, ISBN: 9780073533490
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document.write( "Solve each system by substitution.
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document.write( "page 487 number 3\r
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document.write( "y=x-5
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document.write( "3x-4(y-2)=28-x \n" );
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Algebra.Com's Answer #124041 by stanbon(75887)![]() ![]() ![]() You can put this solution on YOUR website! y=x-5 \n" ); document.write( "3x-4(y-2)=28-x\r \n" ); document.write( "\n" ); document.write( "---------------------- \n" ); document.write( "substitute the 1st into the 2nd equation: \n" ); document.write( "3x -4(x-5-2) = 28-x \n" ); document.write( "3x -4(x-7) = 28-x \n" ); document.write( "3x -4x + 28 = 28 -x \n" ); document.write( "-x 28 = 28 - x \n" ); document.write( "---------------------- \n" ); document.write( "This is true for all values of \"x\". \n" ); document.write( "================================ \n" ); document.write( "Cheers, \n" ); document.write( "Stan H. \n" ); document.write( " |