document.write( "Question 366680: solve using addition method\r
\n" ); document.write( "\n" ); document.write( "x - 2y = -1 and -x + 5y = 4
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Algebra.Com's Answer #261333 by robertb(5830)\"\" \"About 
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Adding corresponding sides, we get 3y = 3, or y = 1.
\n" ); document.write( "Substituting into the 1st equation, x - 2 = -1, or x = 1.
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