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Question #59294

1 Answer

Oct 2, 2017

$4 x - 3 y = 18$ $4x-3y=18$

Explanation:

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

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

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

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

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

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