document.write( "Question 388226: TO SOLVE FOR THE TRHEE UNKNOWNS X,Y,Z FROM
\n" ); document.write( "Z=4*(X+Y)
\n" ); document.write( "Z=2*X*Y \n" ); document.write( "

Algebra.Com's Answer #274512 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
Can't be done.
\n" ); document.write( "To solve for three equations, you need three independent equations.
\n" ); document.write( "With only two, you can get a variable in terms of the other variables.
\n" ); document.write( "As in this case,
\n" ); document.write( " $\"4x%2B4y=2xy\"$
\n" ); document.write( " $\"4x-2xy=-4y\"$
\n" ); document.write( " $\"x%284-2y%29=-4y\"$
\n" ); document.write( " $\"highlight%28x=2y%2F%28y-2%29%29\"$
\n" ); document.write( "So now you have an equation for x and for z in terms of y.
\n" ); document.write( "But that's the best you can do. \n" ); document.write( "

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