14. The numbers $x$ and $y$ satisfy the equation $17 x+51 y=102$. What is the value of $9 x+27 y$ ?
A 54
B 36
C 34
D 18
E The value is undetermined.
SOLUTION
A

By dividing $17 x+51 y=102$ by 17 we get $x+3 y=6$. Multiplying by 9 gives $9 x+27 y=54$.