document.write( "Question 1155480: Solve the following system of equation:
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\n" ); document.write( "𝑿 + 𝟐𝒀 + 𝟑𝒁 = 𝟏𝟎
\n" ); document.write( "𝟐𝑿 − 𝒀 + 𝒁 = 𝟗
\n" ); document.write( "𝟑𝑿 − 𝒁 = 𝟑
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Algebra.Com's Answer #778069 by MathLover1(20849) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"x+%2B+2y+%2B+3z+=+10\"$ .......eq.1
\n" ); document.write( " $\"2x+-+y+%2B+z+=+9\"$ .......eq.2
\n" ); document.write( " $\"3x+-+z+=+3\"$ .......eq.3
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\n" ); document.write( "\n" ); document.write( " $\"3x+-+z+=+3\"$ .......eq.3...solve for $\"z\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=3x+-+3\"$ .........eq.3a\r
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\n" ); document.write( "\n" ); document.write( " $\"2x+-+y+%2B+z+=+9\"$ .......eq.2...solve for $\"z\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"+z+=-2x%2By%2B+9\"$ .......eq.2a\r
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\n" ); document.write( "\n" ); document.write( "from eq.3a and eq.2a we have\r
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\n" ); document.write( "\n" ); document.write( " $\"3x+-+3=-2x%2By%2B+9\"$ ......solve for $\"y\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=3x+-+3%2B2x-9\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=5x+-+12\"$ ........eq.b\r
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\n" ); document.write( "\n" ); document.write( "go to\r
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\n" ); document.write( "\n" ); document.write( " $\"x+%2B+2y+%2B+3z+=+10\"$ .......eq.1, substitute $\"y\"$ and $\"z\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+%2B+2%285x+-+12%29+%2B+3%283x+-+3%29+=+10\"$ ......solve for $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"x+%2B+10x+-+24+%2B+9x+-+9+=+10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20x+-+33+=+10\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20x+=+10%2B33\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"20x+=+43\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28x+=+43%2F20%29\"$ \r
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\n" ); document.write( "\n" ); document.write( "go to\r
\n" ); document.write( "\n" ); document.write( " $\"y=5x+-+12\"$ ........eq.b, substitute $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=5%2843%2F20%29+-+12\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=43%2F4+-+12\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"y=43%2F4+-+48%2F4\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28y=+-+5%2F4%29\"$ \r
\n" ); document.write( "
\n" ); document.write( "\n" ); document.write( "go to\r
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\n" ); document.write( "\n" ); document.write( " $\"z=3x+-+3\"$ .........eq.3a, substitute $\"x\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=3%2843%2F20%29+-+3\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"z=129%2F20+-+60%2F20\"$ \r
\n" ); document.write( "\n" ); document.write( " $\"highlight%28z=69%2F20+%29\"$ \r
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\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "

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