Calculate: |(-6)-(-2)|

Expression: $|\left( -6 \right)-\left( -2 \right)|$

Remove unnecessary parentheses

$|-6-\left( -2 \right)|$

When there is a $-$ in front of an expression in parentheses, change the sign of each term of the expression and remove the parentheses

$|-6+2|$

Calculate the sum

$|-4|$

The absolute value of any number is always positive

$4$