document.write( "Question 319901: Hi! How do I do the substitution method? I am so confused. So, what is the solution on these two equations, y=5x-4y and x+y=12? \n" ); document.write( "
Algebra.Com's Answer #229098 by rfer(16322)\"\" \"About 
You can put this solution on YOUR website!
y=5x-4y = 5y=5x = y=x
\n" ); document.write( "x+y=12
\n" ); document.write( "x+x=12
\n" ); document.write( "2x=12
\n" ); document.write( "x=6
\n" ); document.write( "----------------
\n" ); document.write( "y=5*6-4y
\n" ); document.write( "5y=30
\n" ); document.write( "y=6
\n" ); document.write( "
\n" );