Evaluate the Integral by Making an Appropriate Change of Variables $$\iint _ { z } \frac { 2 x - 3 y } { 5 x + 2 y } d A$$

Short Answer

Evaluate the integral by making an appropriate change of variables. Round your answer to two decimal places.
$$\iint _ { z } \frac { 2 x - 3 y } { 5 x + 2 y } d A$$
$R$ is the parallelogram bounded by the lines
$$2 x - 3 y = - 5,2 x - 3 y = - 2,5 x + 2 y = - 5,5 x + 2 y = - 3 \text {. }$$