document.write( "Question 337175: 3x + 4y = 720; x =?, y =? \n" ); document.write( "
Algebra.Com's Answer #242178 by Fombitz(32388)\"\" \"About 
You can put this solution on YOUR website!
To solve for 2 unknowns, you need 2 independent equations.
\n" ); document.write( "You only have 1 so you can only solve for one variable in terms of the other.
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