document.write( "Question 528614: I need helpp with this problem: x+3y=16 and 2x-y=4, I have to solve this using substitution. \n" ); document.write( "
Algebra.Com's Answer #349344 by stanbon(75887)\"\" \"About 
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x+3y=16 and 2x-y=4,
\n" ); document.write( "Solve this using substitution.
\n" ); document.write( "------------------------------
\n" ); document.write( "y = 2x+4
\n" ); document.write( "---
\n" ); document.write( "Substitute and solve for \"x\":
\n" ); document.write( "x + 3(2x+4) = 16
\n" ); document.write( "x + 6x + 12 = 16
\n" ); document.write( "7x = 4
\n" ); document.write( "x = 4/7
\n" ); document.write( "==========
\n" ); document.write( "Solve for \"y\":
\n" ); document.write( "y = 2x+4
\n" ); document.write( "y = 2(4/7)+4
\n" ); document.write( "y = 8/7 + 4
\n" ); document.write( "--
\n" ); document.write( "y = 5 1/7
\n" ); document.write( "=================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( "================= \n" ); document.write( "
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