document.write( "Question 714561: How do you solve this using substitution?
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document.write( "y = 2x + 9
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document.write( "y = x + 6 \n" );
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Algebra.Com's Answer #438874 by Dionysus10474(5)![]() ![]() ![]() You can put this solution on YOUR website! Because y is equal to y you get: \n" ); document.write( "2x + 9 = x + 6 \n" ); document.write( "take x to the left \n" ); document.write( "x + 9 = 6 \n" ); document.write( "take the 9 to the right \n" ); document.write( "x = 6 - 9 \n" ); document.write( "and voila \n" ); document.write( "x = -3 \n" ); document.write( " |