document.write( "Question 109906: I need some help PLEASE!!!!\r
\n" ); document.write( "\n" ); document.write( "solve each of the following by substitution\r
\n" ); document.write( "\n" ); document.write( "8x-4y=16
\n" ); document.write( "y=2x-4\r
\n" ); document.write( "\n" ); document.write( "Thanks
\n" ); document.write( "Heather
\n" ); document.write( "

Algebra.Com's Answer #80088 by tutorcecilia(2152)\"\" \"About 
You can put this solution on YOUR website!

\n" ); document.write( "Substitute y=2x-4 back into the first equation and solve for the x-term
\n" ); document.write( "8x-4(2x-4)=16
\n" ); document.write( "8x-8x+16=16
\n" ); document.write( "0+16=16
\n" ); document.write( "=16-16
\n" ); document.write( "0=0
\n" ); document.write( "Solution: Infinate solutions; same line
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