# Question #59294

Oct 2, 2017

$4 x - 3 y = 18$

#### Explanation:

You have been given you the values for $x$, $y$ and $z$.

The value of $z$ is useless here, as the expression only includes $x$ and $y$.

We know that:
$x = 3$ and $y = - 2$

So, subbing these values into $4 x - 3 y$, we get:
$4 \left(3\right) - 3 \left(- 2\right)$
$= 12 - \left(- 6\right)$
$= 12 + 6$
$= 18$

So, $4 x - 3 y = 18$.