document.write( "Question 254478: Use the substitution method to solve the linear system given. Express
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document.write( " the answer as an ordered pair of the form (x,y)
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document.write( " x + y = 5
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document.write( " 2x + y = 6 \n" );
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Algebra.Com's Answer #186816 by unlockmath(1688)![]() ![]() You can put this solution on YOUR website! Hello, \n" ); document.write( "There's a couple ways to solve this. Let's take the first equation: \n" ); document.write( "x + y = 5 \n" ); document.write( "2x + y = 6 \n" ); document.write( "And rewrite it as \n" ); document.write( "y = 5 - x \n" ); document.write( "Now plug this into the second equation to give us: \n" ); document.write( "2x +(5-x)=6 Now we can solve x \n" ); document.write( "x+5=6 Subtract 5 from both sides will give us: \n" ); document.write( "x=1 Now we can go back to the original equations and find y \n" ); document.write( "1 + y = 5 Subtract 1 from both sides: \n" ); document.write( "y =4 \n" ); document.write( "Plug in y=4 and x=1 into both equations and it will work out good! \n" ); document.write( "RJ \n" ); document.write( "Check out a new math book at: \n" ); document.write( "www.math-unlock.com \n" ); document.write( " \n" ); document.write( " |