Example

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

Question

$$21 \times 6(2+2)$$

Answer

504

Solution


Simplify  \(2+2\)  to  \(4\).
\[21\times 6\times 4\]
Simplify  \(21\times 6\)  to  \(126\).
\[126\times 4\]
Simplify.
\[504\]
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