# How do you solve x+(-10)=30?

Dec 6, 2016

$x = 40$

#### Explanation:

Using the necessary mathematics you need to isolate the $x$ term while keeping the equation balance:

$x + \left(- 10\right) = 30$

$x + \left(- 10\right) + 10 = 30 + 10$

$x + \left(- 10 + 10\right) = 40$

$x + 0 = 40$

$x = 40$