California Algebra 1, 2007
The equation is.
Rearrange the terms using the commutative property: a + b = b + a.
(Add:)
(Add 7.4 to each side)
According to Additive inverse property: For any number a + (– a) = 0.
So,
According to Additive identity property: For any number 0 + a = a.
So,
The value of.
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