Mathematics, 30.11.2020 22:30 Roof55

If A=-3n+2and, B=5n-7 what is the value of a+b , in simplest form? please i need this answer and i cant solve it

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If A=-3n+2and, B=5n-7 what is the value of a+b , in simplest form? please i need this answer and i...

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