Evaluate: -12-(-8)+(-3)

Expression: $-12-\left( -8 \right)+\left( -3 \right)$

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

$-12+8+\left( -3 \right)$

When there is a $+$ in front of an expression in parentheses, the expression remains the same

$-12+8-3$

Calculate the sum or difference

$-7$