SOLUTION: let a = -5a1 + 4a2 -8a1 + 7a2 find : 13 A .

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Question 619373: let a = -5a1 + 4a2
-8a1 + 7a2
find :
13
A .
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I don't know what that means.