document.write( "Question 99945: I just don't understand this.\r
\n" ); document.write( "\n" ); document.write( "In the following system of linear equations, state how to combine the two equations to obtain one equation with only one variable. \r
\n" ); document.write( "\n" ); document.write( "2x - 7y = 6 \r
\n" ); document.write( "\n" ); document.write( "x + 3y = 2
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Algebra.Com's Answer #72770 by checkley71(8403)\"\" \"About 
You can put this solution on YOUR website!
X+3Y=2 OR X=2-3Y NOW REPLACE X IN THE OTHER EQUATION WITH(2-3Y) & SOLVE FOR Y.
\n" ); document.write( "2(2-3Y)-7Y=6
\n" ); document.write( "4-6Y-7Y=6
\n" ); document.write( "-13Y=6-2
\n" ); document.write( "-13Y=4
\n" ); document.write( "Y=4/-13
\n" ); document.write( "Y=-4/13 ANSWER.
\n" ); document.write( "X+3*-4/13=2
\n" ); document.write( "X-12/13=2
\n" ); document.write( "X=12/13+2
\n" ); document.write( "X=2 12/13 OR 38/13 ANSWER.
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