2 Answers

Unmitigated · Answer 1 · 2016-03-22T11:55:08+0000

$\sf-4R-2r+5$ is already in simplest form.

But if you meant to say
$\sf-4r-2r+5$ , we would combine the first two terms.

Adding/subtracting like terms is the same as adding/subtracting whole numbers.

$\sf-4-2=-6$

Therefore:

$\sf-4r-2r=-6r$

Which gives us:

$\boxed{\sf-6r+5}$

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