document.write( "Question 198945: \n" ); document.write( "

Algebra.Com's Answer #149425 by pannalal(9) $\"\"$ $\"About$

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Given Equations:
\n" ); document.write( "[1] 2x + 3y = 4
\n" ); document.write( "[2] x + 4y = 5\r
\n" ); document.write( "\n" ); document.write( " 2x + 3y = 4 ..........(1)
\n" ); document.write( " x + 4y = 5 ...........(2)\r
\n" ); document.write( "\n" ); document.write( "Multiply Eq(1) by 1 and Eq(2) by 2:
\n" ); document.write( " 2x + 3y = 4
\n" ); document.write( " 2x + 8y = 10
\n" ); document.write( "Subtracting:
\n" ); document.write( " - 5y = -6 ...........(3)\r
\n" ); document.write( "\n" ); document.write( "From Eq(3), we get:
\n" ); document.write( " y = 6/5 ..............(4)\r
\n" ); document.write( "\n" ); document.write( "On Substituting value of y in Eq(1), we get:
\n" ); document.write( " 2x + 3*6/5 = 4
\n" ); document.write( " x = 1/5 ..............(5)\r
\n" ); document.write( "\n" ); document.write( "Summary:
\n" ); document.write( " x = 1/5
\n" ); document.write( " y = 6/5 \n" ); document.write( "

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