document.write( "Question 1161840: Solve by substitution: \r
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document.write( "y=(5/8)x+4
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document.write( "16y+3x=-40 \n" );
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Algebra.Com's Answer #785525 by Alan3354(69443) You can put this solution on YOUR website! y=(5/8)x+4 \n" ); document.write( "16y+3x=-40 \n" ); document.write( "----------- \n" ); document.write( "Sub for y in the 2nd eqn \n" ); document.write( "================= \n" ); document.write( "Multiply the 1st eqn by 16 to avoid fractions: \n" ); document.write( "16y = 10x + 64 \n" ); document.write( "16y + 3x = -40 \n" ); document.write( "-- \n" ); document.write( "Then sub for 16y in the 2nd eqn \n" ); document.write( " \n" ); document.write( " |