You just solve it like a normal multiplication problem and then start putting the decimal begin the answer and place it 3 numbers forward
Answer:
(w+7)(+9) I worked it out but not sure how to attach do yea
Step-by-step explanation:
The answer to this is x= -4
1) Commutative: you change 
2) Associative: you change the parenthesis
3) Distrivutive: you factor 
4) Subtraction: you compute 
5) Multiplicative identity: you use the fact that every number remains unchanged if you multiply it by 1.