document.write( "Question 952745: Y=2x+1
\n" ); document.write( "X+y=7 this is a substitution i gotta find the x and y \n" ); document.write( "
Algebra.Com's Answer #581796 by rothauserc(4718)\"\" \"About 
You can put this solution on YOUR website!
y = 2x+1
\n" ); document.write( "y = 7-x
\n" ); document.write( "substitute for y in first equation
\n" ); document.write( "7-x = 2x+1
\n" ); document.write( "3x = 6
\n" ); document.write( "x = 2
\n" ); document.write( "y = 7-2 = 5
\n" ); document.write( "therefore
\n" ); document.write( "x = 2 and y = 5
\n" ); document.write( " \n" ); document.write( "
\n" );