document.write( "Question 1042893: Solve the systems of equations simultaneously
\n" ); document.write( "4p+6q-r=0
\n" ); document.write( "2p+q+3r=4
\n" ); document.write( "p-2q+2r=10 \n" ); document.write( "

Algebra.Com's Answer #657940 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Use Cramer's rule,
\n" ); document.write( " $\"A=%28matrix%283%2C3%2C%0D%0A4%2C6%2C-1%2C%0D%0A2%2C1%2C3%2C%0D%0A1%2C-2%2C2%29%29\"$
\n" ); document.write( " $\"abs%28A%29=31\"$
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\n" ); document.write( " $\"A%5Bp%5D=%28matrix%283%2C3%2C%0D%0A0%2C6%2C-1%2C%0D%0A4%2C1%2C3%2C%0D%0A10%2C-2%2C2%29%29\"$
\n" ); document.write( " $\"abs%28A%5Bp%5D%29=150\"$
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\n" ); document.write( " $\"A%5Bq%5D=%28matrix%283%2C3%2C%0D%0A4%2C0%2C-1%2C%0D%0A2%2C4%2C3%2C%0D%0A1%2C10%2C2%29%29\"$
\n" ); document.write( " $\"abs%28A%5Bq%5D%29=-104\"$
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\n" ); document.write( " $\"A%5Br%5D=%28matrix%283%2C3%2C%0D%0A4%2C6%2C0%2C%0D%0A2%2C1%2C4%2C%0D%0A1%2C-2%2C10%29%29\"$
\n" ); document.write( " $\"abs%28A%5Br%5D%29=-24\"$
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\n" ); document.write( "So then,
\n" ); document.write( " $\"p=abs%28A%5Bp%5D%29%2Fabs%28A%29=150%2F31\"$
\n" ); document.write( " $\"q=abs%28A%5Bp%5D%29%2Fabs%28A%29=-104%2F31\"$
\n" ); document.write( " $\"r=abs%28A%5Bp%5D%29%2Fabs%28A%29=-24%2F31\"$ \n" ); document.write( "

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