document.write( "Question 258106: If the two given equations are being solved so that one unknown is eliminated by the method of comparison. How is this problem expressed in an equation?\r
\n" ); document.write( "\n" ); document.write( "3x+2y=7
\n" ); document.write( "6x-5y=8
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Algebra.Com's Answer #189961 by drk(1908)\"\" \"About 
You can put this solution on YOUR website!
We have the following:
\n" ); document.write( "(i) 3x+2y=7
\n" ); document.write( "(ii) 6x-5y=8\r
\n" ); document.write( "\n" ); document.write( "If by comparison, you mean substitution, then multiply (i) by 2 to get
\n" ); document.write( "(iii) 6x+4y=14
\n" ); document.write( "(ii) 6x-5y=8.
\n" ); document.write( "Solve (ii) and (iii) for 6x to get
\n" ); document.write( "(iv)6x = 14-4y
\n" ); document.write( "(v) 6x = 8+5y
\n" ); document.write( "Now,
\n" ); document.write( "(vi) 14-4y = 8+5y
\n" ); document.write( "we can solve this for y and get y = 2/3. Then find x as x = 17/9
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