document.write( "Question 163240: Solve using Cramer's Rule Solve for x and y: \r
\n" ); document.write( "\n" ); document.write( "x + 2y = 5
\n" ); document.write( " x - y = 3
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Algebra.Com's Answer #120315 by nabla(475) $\"\"$ $\"About$

You can put this solution on YOUR website!
I will show you how to apply it:
\n" ); document.write( "for:
\n" ); document.write( "ax+by=e
\n" ); document.write( "cx+dy=f\r
\n" ); document.write( "\n" ); document.write( "We will have Cramer's rule giving us:\r
\n" ); document.write( "\n" ); document.write( " $\"x=%28ed-bf%29%2F%28ad-bc%29\"$
\n" ); document.write( "and
\n" ); document.write( " $\"y=%28af-ec%29%2F%28ad-bc%29\"$ \r
\n" ); document.write( "\n" ); document.write( "So, just plug in the numbers for the problem we're interested in. Namely, a=1, b=2, c=1, d=-1, e=5, f=3.\r
\n" ); document.write( "\n" ); document.write( "The process is done automatically by this web site:\r
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\n" ); document.write( "\n" ); document.write( "Check:\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "\n" ); document.write( "

Solved by pluggable solver: Linear System solver (using determinant)

Solve:
\n" ); document.write( " $\"+system%28+%0D%0A++++1%5Cx+%2B+2%5Cy+=+5%2C%0D%0A++++1%5Cx+%2B+-1%5Cy+=+3+%29%0D%0A++\"$
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\n" ); document.write( " Any system of equations:
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\n" ); document.write( " has solution
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\n" ); document.write( " or
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\n" ); document.write( "
\n" ); document.write( " (x=3.66666666666667, y=0.666666666666667}
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