document.write( "Question 1071819: Suppose that x and y are positive numbers with xy=1/9, x(y+1)=7/9, y(x+1)=5/18. What is the value of (x+1)(y+1)? \n" ); document.write( "

Algebra.Com's Answer #686731 by Fombitz(32388) $\"\"$ $\"About$

You can put this solution on YOUR website!
$\"y%2B1=7%2F%289x%29\"$
\n" ); document.write( " $\"x%2B1=5%2F%2818y%29\"$
\n" ); document.write( "So,
\n" ); document.write( " $\"%28x%2B1%29%28y%2B1%29=%287%2F%289x%29%29%285%2F%2818y%29%29\"$
\n" ); document.write( " $\"%28x%2B1%29%28y%2B1%29=%2835%2F162%29%281%2F%28xy%29%29\"$
\n" ); document.write( " $\"%28x%2B1%29%28y%2B1%29=%2835%2F162%29%289%29\"$
\n" ); document.write( " $\"%28x%2B1%29%28y%2B1%29=35%2F18%29\"$ \n" ); document.write( "

\n" );