document.write( "Question 356540: Solve the system by the method of substitution.\r
\n" ); document.write( "\n" ); document.write( "1/2x + 3/4y = 10\r
\n" ); document.write( "\n" ); document.write( "3/4x - y = 4
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Algebra.Com's Answer #254528 by Alan3354(69443)\"\" \"About 
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1/2x + 3/4y = 10 --> 2x + 3y = 40
\n" ); document.write( "3/4x - y = 4 --> y = 3x/4 - 4
\n" ); document.write( "Sub for y in the 1st eqn.
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