document.write( "Question 863842: Please help me solve this equation\r
\n" ); document.write( "\n" ); document.write( "Use the echelon method to solve this system of two equations in two unknowns \r
\n" ); document.write( "\n" ); document.write( "x/2 + y = 3/2
\n" ); document.write( "x/3 + y = 1/3
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Algebra.Com's Answer #520644 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
x/2 + y = 3/2
\n" ); document.write( "x/3 + y = 1/3
\n" ); document.write( "subtract second equation from first
\n" ); document.write( "x/6 = 7/6
\n" ); document.write( "multiply both sides of = by 6
\n" ); document.write( "x = 7
\n" ); document.write( "substitute for x in first equation
\n" ); document.write( "7/2 + y = 3/2
\n" ); document.write( "y = -4/2 = -2
\n" ); document.write( "solution is x = 7, y = -2
\n" ); document.write( "check answer by substituting in second equation
\n" ); document.write( "7/3 -2 = 1/3
\n" ); document.write( "1/3 = 1/3
\n" ); document.write( "our answer checks :-)
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