document.write( "Question 329528: Please solve the system of equations by the method of your choice:
\n" ); document.write( "2x-4y=6 and 4x+y=21\r
\n" ); document.write( "\n" ); document.write( "Are these equations independent, inconsistent, or dependent? \r
\n" ); document.write( "\n" ); document.write( "Thank you,
\n" ); document.write( "Shelley E.
\n" ); document.write( "

Algebra.Com's Answer #236209 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
Please solve the system of equations by the method of your choice:
\n" ); document.write( "2x-4y=6
\n" ); document.write( "4x+y=21
\n" ); document.write( "Are these equations independent, inconsistent, or dependent?
\n" ); document.write( "----------------------
\n" ); document.write( "Multiply the 1st equation by 2:
\n" ); document.write( "4x-8y = 12
\n" ); document.write( "4x+y = 21
\n" ); document.write( "----------------
\n" ); document.write( "Subtract the 1st from the 2nd and solve for \"y\":
\n" ); document.write( "9y = 9
\n" ); document.write( "y = 1
\n" ); document.write( "---
\n" ); document.write( "Substitute into 2x-4y = 6 to solve for \"x\":
\n" ); document.write( "2x-4*1 = 6
\n" ); document.write( "2x = 10
\n" ); document.write( "x = 5
\n" ); document.write( "-------------
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "===========
\n" ); document.write( "
\n" );