# How do you simplify 3 (4 + 5s ) - 12 + ( - 3s )?

Apr 7, 2018

$12 s$

#### Explanation:

$3 \left(4 + 5 s\right) - 12 + \left(- 3 s\right)$

$= 12 + 15 s - 12 - 3 s$

$= \left(12 - 12\right) + \left(15 s - 3 s\right)$

$= 0 + 12 s$

$= 12 s$

Apr 7, 2018

The answer is $12 s$.

#### Explanation:

Firstly you have to open the bracket $3 \left(4 + 5 s\right)$ it will be $12 + 15 s$ and the second bracket $+ \left(- 3 s\right)$ will be $- 3 s$. So your equation will be $12 + 15 s - 12 - 3 s$ then collect like terms, it will be $12 - 12 + 15 s - 3 s$, then it will be $12 s$.

Hope it helps.😀😀