Example

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

Question

$$2(10)$$

Answer

20

Solution


Draw \(2\) groups of \(10\).
Therefore, \(2\times 10=20\).
\[20\]
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