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document.write( "Three times one number added to five times a second number is 68. Three times the second number minus four times the first number is 6. What are the two numbers? \n" );
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Algebra.Com's Answer #437840 by checkley79(3341)![]() ![]() ![]() You can put this solution on YOUR website! 3X+5Y=68 MULTIPLY BY 4 \n" ); document.write( "3Y-4X=6 MULTIPLY BY 3 & ADD. \n" ); document.write( "12X+20Y=272 \n" ); document.write( "-12X+9Y=18 \n" ); document.write( "----------------- \n" ); document.write( "29Y=290 \n" ); document.write( "Y=290/29 \n" ); document.write( "Y=10 ANS. \n" ); document.write( "3X+5*10=68 \n" ); document.write( "3X+50=68 \n" ); document.write( "3X=68-50 \n" ); document.write( "3X=18 \n" ); document.write( "X=18/3 \n" ); document.write( "X=6 ANS. \n" ); document.write( "PROOF: \n" ); document.write( "3*10-4*6=6 \n" ); document.write( "30-24=6 \n" ); document.write( "6=6 \n" ); document.write( " |