Example

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

Question

$$\cdot4\frac{1}{5}:\frac{5}{10}$$

Answer

*415

Solution


Simplify.
\[\times 415\]
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