document.write( "Question 76689: Solve the system by addition.
\n" ); document.write( " –3x – 5y = –5
\n" ); document.write( " x – 2y = 9
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Algebra.Com's Answer #55006 by funmath(2933)\"\" \"About 
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Solve the system by addition.
\n" ); document.write( " –3x – 5y = –5
\n" ); document.write( " x – 2y = 9
\n" ); document.write( "Multiply the second equation by 3 and add it to the first equation to eliminate the x's and solve for y:
\n" ); document.write( "3(x-2y)=3(9)--->3x-6y=27
\n" ); document.write( ":
\n" ); document.write( "-3x-5y=-5
\n" ); document.write( " 3x-6y=27
\n" ); document.write( "----------
\n" ); document.write( "0-11y=22
\n" ); document.write( "-11y=22
\n" ); document.write( "-11y/-11=22/-11
\n" ); document.write( "y=-2
\n" ); document.write( "Plug -2 in for y in either equation and solve for x, I'm going with the second equation because it's slightly easier.
\n" ); document.write( "x-2(-2)=9
\n" ); document.write( "x+4=9
\n" ); document.write( "x+4-4=9-4
\n" ); document.write( "x=5
\n" ); document.write( "The solution (x,y)=(5,-2)
\n" ); document.write( "Happy Calculating!!!!
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