document.write( "Question 407001: substitution method:
\n" ); document.write( "x=y-1
\n" ); document.write( "y=4-2x? \n" ); document.write( "

Algebra.Com's Answer #287223 by ewatrrr(24785) $\"\"$ $\"About$

You can put this solution on YOUR website!


\n" );
document.write( "Hi
\n" );
document.write( "solving by substitution method:
\n" );
document.write( "x=y-1
\n" );
document.write( "y=4-2x\r
\n" );
document.write( "\n" );
document.write( "y = 4 - 2(y-1)  |substituting for (y-1) for x
\n" );
document.write( "  3y = 6
\n" );
document.write( "   y = 2 and x = 1  (2-1)\r
\n" );
document.write( "\n" );
document.write( "CHECKING our Answer***
\n" );
document.write( "  y = 4-2x
\n" );
document.write( "  2 = 4  - 2 \n" );
document.write( "

\n" );