Basic Math Examples

$0 = a + (- a)$

Step 1

Rewrite the equation as $a - a = 0$ .

$a - a = 0$

Step 2

Subtract $a$ from $a$ .

$0 = 0$

Step 3

Since $0 = 0$ , the equation will always be true for any value of $a$ .

All real numbers

Step 4

The result can be shown in multiple forms.

All real numbers

Interval Notation:

$(- \infty, \infty)$