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Jakob is asked to simplify the expression –3a + 4b + 5a + (–7b).

He writes: –3a + 4b + 5a + (–7b) = –3a + 5a + 4b + (–7b).

Which property allows him to do this?​

User Taralex
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1 Answer

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answer

he is simple following addition rule

User Yoeli
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