document.write( "Question 255175: x+3y=19
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document.write( "x-y=-1
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document.write( "what does it equal? \n" );
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Algebra.Com's Answer #187471 by richwmiller(17219)![]() ![]() You can put this solution on YOUR website! There are several ways to solve this. \n" ); document.write( "You can substitute or eliminate. \n" ); document.write( "Let's do elimination \n" ); document.write( "Subtract second equation from the first which eliminates the x's. Be careful with signs plus and minus. \n" ); document.write( "Divide both sides by 4. The reason for 4 should be obvious. If not do the subtraction again.\r \n" ); document.write( "\n" ); document.write( " \n" ); document.write( " |