document.write( "Question 729677: In applying kirchhoff's laws to the circuit shown to the right, the following equations are found.?
\n" ); document.write( "iA+iB+iC=0
\n" ); document.write( "7iA-5iB =2
\n" ); document.write( "5iB-3iC=-1\r
\n" ); document.write( "\n" ); document.write( "iA=?,iB=?,iC=?\r
\n" ); document.write( "\n" ); document.write( "type integers or a fractions.
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Algebra.Com's Answer #446169 by MathLover1(20850)\"\" \"About 
You can put this solution on YOUR website!
\"iA%2BiB%2BiC=0\"......1
\n" ); document.write( "\"7iA-5iB+=2\".......2
\n" ); document.write( "\"5iB-3iC=-1\".......3\r
\n" ); document.write( "\n" ); document.write( "\"iA\"=?,\"iB\"=?,\"iC\"=?\r
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\n" ); document.write( "\n" ); document.write( "I am going to find \"A\",\"B\", \"C\"\r
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\n" ); document.write( "\n" ); document.write( "start with \"iA%2BiB%2BiC=0\"......1...solve for \"A\"\r
\n" ); document.write( "\n" ); document.write( "\"A=%28-iB-iC%29%2Fi\"\r
\n" ); document.write( "\n" ); document.write( "\"A=%28-cross%28i%29B-cross%28i%29C%29%2Fcross%28i%29%0D%0A%0D%0A%7B%7B%7Bhiglight%28A=-B-C%29\"......plug it in 2\r
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\n" ); document.write( "\n" ); document.write( "\"7i%28-B-C%29-5iB+=2\".......2\r
\n" ); document.write( "\n" ); document.write( "\"-7iB-7iC-5iB+=2\"\r
\n" ); document.write( "\n" ); document.write( "\"-12B-7C=2\"....both side multiply by \"-1\"\r
\n" ); document.write( "\n" ); document.write( "\"12B%2B7C=-2\"....solve for \"C\"\r
\n" ); document.write( "\n" ); document.write( "\"7C+=-2-12iB\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28C+=%28-2-12iB%29%2F7%29\"........plug in 3\r
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\n" ); document.write( "\n" ); document.write( "\"5iB-3iC=-1\".......3\r
\n" ); document.write( "\n" ); document.write( "\"5iB-3i%28-2-12iB%29%2F7=-1\".......solve for \"B\"\r
\n" ); document.write( "\n" ); document.write( "\"5iB-%28-6i-12%2A3i%2AiB%29%2F7=-1%0D%0A%0D%0A%7B%7B%7B5iB-%28-6i%2B-36i%5E2B%29%2F7=-1\"\r
\n" ); document.write( "\n" ); document.write( "\"5iB-%28-6i-36%28-1%29B%29%2F7=-1\"\r
\n" ); document.write( "\n" ); document.write( "\"5iB-%28-6i%2B36B%29%2F7=-1\".......both sides multiply by \"7\"\r
\n" ); document.write( "\n" ); document.write( "\"35iB-%28-6i%2B36B%29=-7\"\r
\n" ); document.write( "\n" ); document.write( "\"35iB%2B6i-36B=-7\"\r
\n" ); document.write( "\n" ); document.write( "\"B%2835i-36%29=-7%2B6i\"\r
\n" ); document.write( "\n" ); document.write( "\"highlight%28B=%28-7%2B6i%29%2F%2835i-36%29%29\".........now find C\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"C+=%282%2B12iB%29%2F7\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"C+=%282%2B12i%28-7%2B6i%29%2F%2835i-36%29%29%2F7\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"C+=%282%2B%28-7%2A12i%2B6i%2A12i%29%2F%2835i-36%29%29%2F7\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"C+=%282%2835i-36%29%2B%28-84i%2B72i%5E2%29%29%2F%2835i-36%29%29%2F7\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"C+=%2870i-72-84i-72%29%2F%2835i-36%29%29%2F7\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"highlight%28C+=%28-14i-144%29%2F7%2835i-36%29%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "and now find \"A\"\r
\n" ); document.write( "\n" ); document.write( "\"A=%28-B-C%29\"\r
\n" ); document.write( "\n" ); document.write( "\"A=%28-%28-7%2B6i%29%2F%2835i-36%29%29-%28%28-14i-144%29%2F7%2835i-36%29%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"A=%287-6i%29%2F%2835i-36%29%2B%2814i%2B144%29%2F7%2835i-36%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"A=%287%287-6i%29%2B14i%2B144%29%2F7%2835i-36%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"A=%2849-42i%2B14i%2B144%29%2F7%2835i-36%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"highlight%28A=%28-28i%2B193%29%2F7%2835i-36%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "since you need \"iA\",\"iB\",\"iC\", your solutions are:\r
\n" ); document.write( "\n" ); document.write( "\"iA=i%28-28i%2B193%29%2F%287%2835i-36%29%29\"\r
\n" ); document.write( "\n" ); document.write( "\"iB=i%28-7%2B6i%29%2F%2835i-36%29\" and\r
\n" ); document.write( "\n" ); document.write( "\"iC=i%28-14i-144%29%2F%287%2835i-36%29%29\"\r
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\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "check:\r
\n" ); document.write( "\n" ); document.write( "\"iA%2BiB%2BiC=0\"......1\r
\n" ); document.write( "\n" ); document.write( "......1\r
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "\n" ); document.write( "\r
\n" ); document.write( "\n" ); document.write( "\r
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\n" ); document.write( "\n" ); document.write( "\"%2828%2B193i%2B7%28-7i-6%29%2B14-144i%29%2F%287%2835i-36%29%29=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"%2828%2B193i-49i-42%2B14-144i%29=0%2A%287%2835i-36%29%29\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"28%2B193i-28-193i=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"28-28%2B193i-193i=0\"\r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "\"0=0\"\r
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