document.write( "Question 555083: Solve the following system of equations.\r
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document.write( "2x + y = 3
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document.write( "x = 2y - 1\r
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document.write( "Make sure there are NO SPACES in your answer. Include a comma in your answer.
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Algebra.Com's Answer #361628 by kkasko(46)![]() ![]() ![]() You can put this solution on YOUR website! Solve the following system of equations.\r \n" ); document.write( "\n" ); document.write( "2x + y = 3 \n" ); document.write( "x = 2y - 1\r \n" ); document.write( "\n" ); document.write( "Make sure there are NO SPACES in your answer. Include a comma in your answer. \n" ); document.write( "It looks like I could substitute the x=2y-1. Into 2x+y=3 \n" ); document.write( "2(2y-1)+y=3 \n" ); document.write( "4y-2+y=3 \n" ); document.write( "5y=5 \n" ); document.write( "y=1 \n" ); document.write( "x=2(1)-1 \n" ); document.write( "x=1 \n" ); document.write( "(1,1) \n" ); document.write( "CHECK \n" ); document.write( "2x+y=3 \n" ); document.write( "2(1)+(1)=3 \n" ); document.write( "2+1=3 \n" ); document.write( "3=3 \n" ); document.write( "Left hand side=Right hand side \n" ); document.write( "Check other equation \n" ); document.write( "x=2y-1 \n" ); document.write( "1=2(1)-1 \n" ); document.write( "1=1 \n" ); document.write( "Therefore the solution is (1,1). Since the left hand side= right hand side in each equation \n" ); document.write( " |