Mathematics
Mathematics, 04.03.2021 09:40, Batzs3rdacct

Add or subtract the linear expressions 1: ( 7 + a ) - (-7a + 1 )

2: (-3k - 1 ) + ( 7 + 2k )​

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Add or subtract the linear expressions 1: ( 7 + a ) - (-7a + 1 )

2: (-3k - 1 ) + ( 7 + 2...

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