document.write( "Question 945145: Solve the system using substitution.
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\n" ); document.write( "2x + 5y = -6
\n" ); document.write( "4x + y = -12
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Algebra.Com's Answer #576320 by Alan3354(69443)\"\" \"About 
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2x + 5y = -6
\n" ); document.write( "4x + y = -12 --> y = -4x-12
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\n" ); document.write( "Sub for y in the 1st equation.
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