document.write( "Question 295047: Having trouble with systems of equations using elimination. y=2x+3 and y=-x-4 \n" ); document.write( "
Algebra.Com's Answer #212691 by ozybloke(7)\"\" \"About 
You can put this solution on YOUR website!
y = 2x + 3
\n" ); document.write( "y = -x - 4
\n" ); document.write( "Use the substitution method\r
\n" ); document.write( "\n" ); document.write( "If y = 2x + 3 then replace the y in the second equation with 2x + 3
\n" ); document.write( "2x + 3 = -x - 4
\n" ); document.write( "Collect like terms
\n" ); document.write( "3x = - 7
\n" ); document.write( "x = -7/3\r
\n" ); document.write( "\n" ); document.write( "If x = -7/3 then substitute that value in to the top equation to find y
\n" ); document.write( "y = 2(-7/3) + 3
\n" ); document.write( "y = -14/3 + 9/3
\n" ); document.write( "y = - 5/3
\n" ); document.write( " \n" ); document.write( "
\n" );