Example

3(r+2s)=2t-4
a⋅(b-2)=3b
3(r+2s)=2t-4
a⋅(b-2)=3b

Question

$$(\frac{4}{5}+\frac{-2}{3})+\frac{8}{9}=\frac{4}{5}+\frac{(-2}{3}+\frac{8}{9})$$

Answer

[Infinite Solutions]

Solution


Remove parentheses.
\[45+-23+89=45+-23+89\]
Since both sides equal, there are infinitely many solutions.
Infinitely Many Solutions
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