document.write( "Question 137655: Solve by the elimination method.\r
\n" ); document.write( "\n" ); document.write( "9x-9y=36\r
\n" ); document.write( "\n" ); document.write( "7y-3x= -14
\n" ); document.write( "What is the solution of the system?
\n" ); document.write( "Can someone explain this to me? I do not understand this at all...not of it.
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Algebra.Com's Answer #100681 by scott8148(6628)\"\" \"About 
You can put this solution on YOUR website!
in order to ELIMINATE one of the variables, you need to get the absolute value of the coefficients to match
\n" ); document.write( "__ then you can either add or subtract the equations and the variable will be cancelled (eliminated)\r
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\n" ); document.write( "\n" ); document.write( "multiplying the second equation by 3 __ 21y-9x=-42
\n" ); document.write( "__ adding to first equation __ 9x-9y+21y-9x=36-42 __ 12y=-6 __ y=-1/2\r
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\n" ); document.write( "\n" ); document.write( "substituting __ 7(-1/2)-3x=-14 __ -3x=-21/2 __ x=7/2
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