document.write( "Question 415775: In the following system of equations, what does x equal?
\n" ); document.write( "8x - 8y = 16
\n" ); document.write( "4x + 4y = -72
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Algebra.Com's Answer #291433 by ewatrrr(24785)\"\" \"About 
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\n" ); document.write( "Hi
\n" ); document.write( "solving System by Elimination
\n" ); document.write( "8x - 8y = 16
\n" ); document.write( "4x + 4y = -72 \r
\n" ); document.write( "\n" ); document.write( "8x - 8y = 16
\n" ); document.write( "8x + 8y = -144
\n" ); document.write( " 16x = -128
\n" ); document.write( " x = -8 and y = -10 |(-72-(-32))/4 = -40/4 |using 2nd Eq\r
\n" ); document.write( "\n" ); document.write( "CHECKING our Answer***
\n" ); document.write( " 8x - 8y = 16
\n" ); document.write( " -64 + 80 = 16 \n" ); document.write( "
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