document.write( "Question 428648: Solve for x and y using addition or substitution.
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Algebra.Com's Answer #297897 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


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document.write( "Hi
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document.write( "Solve for x and y using addition or substitution. 
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document.write( "2x -3y = 4   |Assuming the typo
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document.write( "2x + y = -4\r
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document.write( "2x -3y = 4   |Multiplying 2nd EQ by 3 to eliminate y
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document.write( "6x +3y = -4*3
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document.write( "  8x = -8
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document.write( "   x = -1   and y = -2  (y= -2x - 4)\r
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document.write( "CHECKING our Answer***
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document.write( " 2x -3y = 4 
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document.write( " 2*-1 - 3*-2 = -2 + 6 = 4 \n" );
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