plz answer step by step (ii)
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Law of the commutative property: a+b = b+a
ii).
.°.
.°. a+b=b+a that's true
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Answer:
Law of the commutative property: a+b = b+a
ii).
a = \frac{21}{( - 8)} b = \frac{16}{7}a=
(−8)
21
b=
7
16
.°.
\begin{gathered} \frac{21}{( - 8)} + \frac{16}{7} = \frac{16}{(7} + \frac{21}{ (- 8)} \\ = - \frac{19}{56} = - \frac{19}{56} \\ \end{gathered}
(−8)
21
+
7
16
=
(7
16
+
(−8)
21
=−
56
19
=−
56
19
.°. a+b=b+a that's true
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