Question

w $6(-3-7)$
s $-2(-11 + -4)$
i $(-15 + 9) - -1$

Explanation:

Step1: Solve expression W: Simplify parentheses first

$6(-3-7)=6(-10)$

Step2: Calculate final value for W

$6(-10)=-60$

Step3: Solve expression S: Simplify parentheses first

$-2(-11 + -4)=-2(-15)$

Step4: Calculate final value for S

$-2(-15)=30$

Step5: Solve expression I: Simplify parentheses first

$(-15+9)--1=(-6)--1$

Step6: Simplify double negative, calculate I

$(-6)+1=-5$

Answer:

W: $-60$
S: $30$
I: $-5$