document.write( "Question 942940: solve by the method of substitution \r
\n" ); document.write( "\n" ); document.write( "x+7y=0
\n" ); document.write( "2x-8y=22
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Algebra.Com's Answer #574866 by Alan3354(69443)\"\" \"About 
You can put this solution on YOUR website!
solve by the method of substitution \r
\n" ); document.write( "\n" ); document.write( "x+7y=0 --> x = -7y -- Sub for x in the other eqn
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\n" ); document.write( "2x-8y=22 --> x - 4y = 11
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