How do you solve 2- a - 4a = 12?

Oct 28, 2016

$a = - 2$

Explanation:

$2 - a - 4 a = 12$

$- a - 4 a = 12 - 2$

$- 5 a = 10$

$a = \frac{10}{-} 5$

$a = - 2$