document.write( "Question 82250: solve the system by substitution\r
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document.write( "8x-4y=16
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document.write( "y=2x-4 \n" );
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Algebra.Com's Answer #58919 by tutorcecilia(2152)![]() ![]() You can put this solution on YOUR website! y=2x-4 [substitute for the y-term in the first equation] \n" ); document.write( "8x-4y=16 \n" ); document.write( "8x-4(2x-4)=16 [simplify]\r \n" ); document.write( "\n" ); document.write( "8x-8x+16=16 \n" ); document.write( "0+16=16 \n" ); document.write( "16=16 [Infinate number of solutions because the equations represent the same line]\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |