document.write( "Question 196978: The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number.
\n" ); document.write( "I tried using substitution from the two equations given, which I think are :
\n" ); document.write( "(x + y) / 2 = 7 and
\n" ); document.write( "3x = 1/2y
\n" ); document.write( "But I didn't have any luck \n" ); document.write( "
Algebra.Com's Answer #147660 by stanbon(75887)\"\" \"About 
You can put this solution on YOUR website!
The average of two numbers is 7. Find the numbers if three times one of the numbers is one half the other number.
\n" ); document.write( "I tried using substitution from the two equations given, which I think are :
\n" ); document.write( "(x + y) / 2 = 7 and
\n" ); document.write( "3x = 1/2y
\n" ); document.write( "-----------------------
\n" ); document.write( "Those are good equations.
\n" ); document.write( "---
\n" ); document.write( "Rearrange to get:
\n" ); document.write( "x + y = 14
\n" ); document.write( "y = 6x
\n" ); document.write( "-------------
\n" ); document.write( "Substitute to solve for \"x\":
\n" ); document.write( "x + 6x = 14
\n" ); document.write( "x = 2 (one of the numbers)
\n" ); document.write( "y = 12 (the other number)
\n" ); document.write( "================================
\n" ); document.write( "Cheers,
\n" ); document.write( "Stan H.\r
\n" ); document.write( "\n" ); document.write( " \n" ); document.write( "
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