document.write( "Question 371736: Use substitution and elimination?
\n" ); document.write( "2x+y=-4
\n" ); document.write( "x=y+7
\n" ); document.write( " \n" ); document.write( "

Algebra.Com's Answer #264773 by robertb(5830) $\"\"$ $\"About$

You can put this solution on YOUR website!
Put the bottom eqn. into the top eqn.: 2(y+7) +y = -4,
\n" ); document.write( "2y+14+y = -4,
\n" ); document.write( "3y = -18,
\n" ); document.write( "y = -6,
\n" ); document.write( "x = -6+7 = 1 \n" ); document.write( "

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