\(\Rightarrow A=12.\left(-47-19\right)-66\)
\(\Rightarrow12.\left(-66\right)-66\)
\(\Rightarrow-792-66\)
\(\Rightarrow A=-858\)
\(A=12.\left(-47\right)+12.\left(-19\right)+\left(-66\right)\)
\(A=-564+12\left(-19\right)+\left(-66\right)\)
\(A=-564-288+\left(-66\right)\)
\(A=-564-228-66\)
\(A=-858\)
A= 12.(-47)+12.(-19)+(-66)
A= 12.[(-47)+(-19)+(-66)]
A= 12.[(-66)+(-66)]
A= 12.(-132)
A= -1584