# How do you evaluate 3-(-6) + (-h) + (-4) where h=-7?

Feb 7, 2017

$12$

#### Explanation:

$3 - \left(- 6\right) + \left(- h\right) + \left(- 4\right)$

$\therefore = 3 + 6 - h - 4$

$\therefore = 9 - h - 4$

substitute $h = - 7$

$\therefore = 9 - \left(- 7\right) - 4$

$\therefore = 9 + 7 - 4$

$\therefore = 16 - 4$

$\therefore = 12$
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