document.write( "Question 870565: Using the method of substitution find the value of x and y.
\n" ); document.write( "y = x^2 - 2x -6
\n" ); document.write( "y = x^2 - 4
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Algebra.Com's Answer #524932 by josgarithmetic(39628)\"\" \"About 
You can put this solution on YOUR website!
Equate the two expressions for y. You quickly find \"-2x-6=-4\".
\n" ); document.write( "x=-1.
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