document.write( "Question 243720: Solve by the substitution method.\r
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document.write( "x + y = 2
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document.write( "x + y = -9 \n" );
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Algebra.Com's Answer #178527 by checkley77(12844) ![]() You can put this solution on YOUR website! (x=y) CANNOT = (2 & 9) in the same set of 2 equations. \n" ); document.write( "x + y = 2 or x=2-y \n" ); document.write( "x + y = -9 replace x with (2-y) \n" ); document.write( "2-y+y=-9 \n" ); document.write( "2+0=-9 \n" ); document.write( "2=9 invalid set of equations. \n" ); document.write( " |