document.write( "Question 716246: solve the system of equation using substitution method.enter as ordered pair.
\n" ); document.write( "x+7=3
\n" ); document.write( "y=8
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Algebra.Com's Answer #439776 by checkley79(3341)\"\" \"About 
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x+7=3
\n" ); document.write( "x=3-7=-4 ans.
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\n" ); document.write( "y=8 ans.
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\n" ); document.write( "Where is the opportunity to substitute?????????????????????
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