Algebra Examples

$p - - 2 = - 9$

Step 1

Replace all occurrences of $-$ $-$ with a single $+$ . Two consecutive minus signs have the same mathematical meaning as a single plus sign because $- 1 \cdot - 1 = 1$

$p + 2 = - 9$

Step 2

Subtract $2$ from both sides of the equation.

$p = - 9 - 2$

Step 3

Subtract $2$ from $- 9$ .

$p = - 11$