SOLUTION: (-x + a)-(x-a) if x=-4 and a=5

Question 50324: (-x + a)-(x-a) if x=-4 and a=5
Answer by tutorcecilia(2152) (Show Source): You can put this solution on YOUR website!
(-x + a)-(x-a) if x=-4 and a=5
[-(-4) + (5)]-[(-4)-(5)]
(4+5) - (-4-5)
(9)-(-9)
9+9
18
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