document.write( "Question 85985: x=2y
\n" ); document.write( "y=x-2 \n" ); document.write( "

Algebra.Com's Answer #62133 by tutorcecilia(2152) $\"\"$ $\"About$

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x=2y
\n" ); document.write( "y=x-2
\n" ); document.write( "Use the substitution method to solve:
\n" ); document.write( "y=x-2 [substitute (x=2y) for the \"x\" term and solve]
\n" ); document.write( "y=(2y)-2
\n" ); document.write( "y=2y-2
\n" ); document.write( "0=2y-y-2
\n" ); document.write( "0=y-2
\n" ); document.write( "2=y [plug (y=2) back into either equation and solve for the x-term]
\n" ); document.write( ".
\n" ); document.write( "x-2y
\n" ); document.write( "x=2(2)
\n" ); document.write( "x=4
\n" ); document.write( ".
\n" ); document.write( "checking:
\n" ); document.write( "y=x-2
\n" ); document.write( "2=4-2
\n" ); document.write( "2=2 [checks out]
\n" ); document.write( ".
\n" ); document.write( "So, the solution is (4, 2) as a common, intersecting point for both of these lines.\r
\n" ); document.write( "\n" ); document.write( " $\"+graph%28+300%2C+200%2C+-6%2C+5%2C+-10%2C+10%2C+%281%2F2%29x%2C+x-2%29+\"$ \n" ); document.write( "

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