How do you evaluate $x-(-y)$ where x=-2 and y=5?

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Answer 1 · 2017-01-11T23:27:40

Substitute $color(red)(-2)$ for $x$ and Substitute $color(blue)(5)$ for $y$ and calculate. See process below:

$color(red)(x) - (-color(blue)(y))$ becomes:

$color(red)(-2) - (-color(blue)(5))$

Because in addition and subtract minus a negative number becomes a plus, we can rewrite as:

$color(red)(-2) + color(blue)(5)$

$3$

How do you evaluate x-(-y)x-(-y) where x=-2 and y=5?