document.write( "Question 374023: Solve the following system of equations.
\n" ); document.write( "x - y = 10
\n" ); document.write( "2x + y = 2\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "Explain which method you chose to solve the system and why you felt it was the best choice \n" ); document.write( "
Algebra.Com's Answer #266229 by checkley79(3341)\"\" \"About 
You can put this solution on YOUR website!
I'LL CHOOSE THE ELIMINATION METHOD.
\n" ); document.write( "LEAST AMOUNT OF WORK. (11 STEPS)
\n" ); document.write( "x - y = 10
\n" ); document.write( "2x + y = 2 ADD
\n" ); document.write( "-------------
\n" ); document.write( "3X=12
\n" ); document.write( "X=12/3
\n" ); document.write( "X=4 ANS.
\n" ); document.write( "4-Y=10
\n" ); document.write( "-Y=10-4
\n" ); document.write( "-Y=6
\n" ); document.write( "Y=-6 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*4+(-6)=2
\n" ); document.write( "8-6=2
\n" ); document.write( "2=2
\n" ); document.write( "-----------------------
\n" ); document.write( "SUBSTITUTION METHOD. (15 STEPS)
\n" ); document.write( "X=10+Y
\n" ); document.write( "2(10+Y)+Y=2
\n" ); document.write( "20+2Y+Y=2
\n" ); document.write( "3Y=2-20
\n" ); document.write( "3Y=-18
\n" ); document.write( "Y=-18/6
\n" ); document.write( "Y=-6 ANS.
\n" ); document.write( "X-(-6)=10
\n" ); document.write( "X+6=10
\n" ); document.write( "X=10-6
\n" ); document.write( "X=4 ANS.
\n" ); document.write( "PROOF:
\n" ); document.write( "2*4+(-6)=2
\n" ); document.write( "8-6=2
\n" ); document.write( "2=2 \n" ); document.write( "
\n" );