document.write( "Question 190977: Hi, was wondering if anyone could help me with the following system of equations problem. Steps on how to solve fully would be ideal also.\r
\n" ); document.write( "\n" ); document.write( "A-B+C=1
\n" ); document.write( "2A-2B=0
\n" ); document.write( "3A+B-3C=2\r
\n" ); document.write( "\n" ); document.write( "Any help would be most appreciated,
\n" ); document.write( "-Thanks, -Nick.
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Algebra.Com's Answer #143387 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
A -B + C = 1
\n" ); document.write( "2A -2B + 0 = 0
\n" ); document.write( "3A +B -3C = 2
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\n" ); document.write( "Subtract 2 times the 1st from the 2nd; Subtract 3 times the 1st from the 3rd:
\n" ); document.write( "A -B + C = 1
\n" ); document.write( "0 +0 -2C = -2
\n" ); document.write( "0 +4B -6C = -1
\n" ); document.write( "------------------------
\n" ); document.write( "The 2nd equation tells us that C = 1
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\n" ); document.write( "Substitute that into the 3rd equation to solve for \"B\":
\n" ); document.write( "4B - 6 = -1
\n" ); document.write( "4B = 5
\n" ); document.write( "B = 5/4
\n" ); document.write( "--------------------------
\n" ); document.write( "Substitute those values into the 1st equation to solve for \"A\":
\n" ); document.write( "A - (5/4) + 1 = 1
\n" ); document.write( "A = 5/4
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\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
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