document.write( "Question 178669: Solve by substitution, which one is it, independent, inconsistent, or dependent. Please show how it is solved. Thank you.
\n" ); document.write( "x-y = 3
\n" ); document.write( "3x - 2y = 3\r
\n" ); document.write( "\n" ); document.write( "and\r
\n" ); document.write( "\n" ); document.write( "2x -y = 3
\n" ); document.write( "6x - 9 = 3y \n" ); document.write( "
Algebra.Com's Answer #133634 by stanbon(75887)\"\" \"About 
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Solve by substitution, which one is it, independent, inconsistent, or dependent. Please show how it is solved. Thank you.
\n" ); document.write( "x-y = 3
\n" ); document.write( "3x - 2y = 3
\n" ); document.write( "------------------
\n" ); document.write( "x = y+3
\n" ); document.write( "Substitute to get:
\n" ); document.write( "3(y+3) - 2y = 3
\n" ); document.write( "3y + 9 -2y = 3
\n" ); document.write( "y = -6
\n" ); document.write( "------------------
\n" ); document.write( "Then x = y+3 = -6+3 = -3
\n" ); document.write( "----
\n" ); document.write( "Since there is a single solution the system is independent.
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\n" ); document.write( "\n" ); document.write( "and
\n" ); document.write( "2x -y = 3
\n" ); document.write( "6x - 9 = 3y
\n" ); document.write( "--------
\n" ); document.write( "y = 2x-3
\n" ); document.write( "Substitute to get:
\n" ); document.write( "6x -9 = 3(2x-3)
\n" ); document.write( "6x -9 = 6x - 9
\n" ); document.write( "This is always true so the system is dependent
\n" ); document.write( "====================================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.
\n" ); document.write( " \n" ); document.write( "
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