How do you simplify $- 55 n + 28 n + 21 n + 7 n - n$ $-55n + 28n + 21n + 7n - n$ ?

Question

1651 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2016-09-05T21:11:49

$0$ $0$

These are all like terms. Simplify into one term, taking the positive and negative terms into consideration.

$- 55 n + 28 n + 21 n + 7 n - n$ $-55n + 28n + 21n + 7n - n$

= $28 n + 21 n + 7 n - 55 n - n$ $color(blue)(28n + 21n + 7n)color(red)( -55n - n)$

= $56 n - 56 n$ $color(blue)(56n)color(red)( -56n)$

= $0$ $0$

How do you simplify −55n+28n+21n+7n−n-55n + 28n + 21n + 7n - n?