document.write( "Question 710254: how to solve the following problem by substitution \r
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\n" ); document.write( "\n" ); document.write( "x+y= -2
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Algebra.Com's Answer #436936 by solver91311(24713)\"\" \"About 
You can put this solution on YOUR website!
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\n" ); document.write( "\n" ); document.write( "Solve the first equation for y in terms of x. Substitute the resulting expression in x for y in the second equation. You will have an equation in x, solve it for x. If you obtain an absurd result, then the solution set of the system is the empty set.\r
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\n" ); document.write( "\n" ); document.write( "John
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\n" ); document.write( "Egw to Beta kai to Sigma
\n" ); document.write( "My calculator said it, I believe it, that settles it
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\"The

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