I spent $25 on my grocery delivery service yesterday. It usually costs me $1.20 per mile to drive to the store and I live 8 mile
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Answer:
X=[24,,-33]
Step-by-step explanation:
The given equation is :
We multiply through by 3 to get:
Solve for x to get:
The entries are: A=[-12 -3] B= [-12 10]
Let X=[a,b]
We substitute the entries to get:
[a,b]=[-12,-3]-3[-12,10]
We simplify the Right Hand Side to get:
[a,b]=[-12,-3]-[-36,30]
We simplify further to get:
[a,b]=[-12--36,-3-30]
This implies that:
[a,b]=[24,-33]
Hence, X=[24,-33]