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zubka84 [21]
2 years ago
12

|a-7| - |a-9| if a<7

Mathematics
1 answer:
CaHeK987 [17]2 years ago
4 0

Step-by-step explanation:

-  |a - 7|  - ( -  |a - 9| ) =  - a  + 7 + a - 9 =  - 2

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