How do you simplify $-10+ 4k - 10+ 4k$ ?

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Answer 1 · 2017-09-27T21:24:16

$8k - 20$

When simplifying, you want to collect like terms and then add or subtract.

Collecting like terms, we rearrange the expression to get
$4k + 4k - 10 - 10$

Then we simply add: $4k + 4k = 8k$
and subtract: $-10-10 = -20$
to simplify these two parts, then put them together to get
$8k - 20$

How do you simplify -10+ 4k - 10+ 4k-10+ 4k - 10+ 4k?