Jakob is asked to simplify the expression -3a + 4b + 5a + (-7b). x
He writes: -3a + 4b + 5a + (-7b) = -3a + 5a + 4b + (-7b).
Which property allows him to do this?
ОООО
the associative property
the commutative property
the distributive property
the additive identity property
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