2744erhuang 2744erhuang

04-08-2021
Mathematics

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

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MohammadAli82 MohammadAli82

04-08-2021

Step-by-step explanation:

[tex] - |a - 7| - ( - |a - 9| ) = - a + 7 + a - 9 = - 2[/tex]

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