# How do you find 4x - 2y if x = -1 and y = -5?

Sep 23, 2017

6

#### Explanation:

You just need to put the given values of $x$ and $y$ in the given expression and evaluate as:

$= 4 \left(- 1\right) - 2 \left(- 5\right)$

Just remeber these parantheses rule to simplify this:

$a \cdot \left(- b\right) = - a \cdot b$
$- a \cdot \left(- b\right) = a \cdot b$

So by applying you will get:

$= - 4 \cdot 1 + 2 \cdot 5$

Simplify:

$= 6$