document.write( "Question 843619: x+y=20 solve using substitution
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Algebra.Com's Answer #508261 by Fombitz(32388)![]() ![]() You can put this solution on YOUR website! Need two equations to solve for 2 unknowns. \n" ); document.write( "Please repost. \n" ); document.write( " \n" ); document.write( " |