Example

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

Question

$$2-1+2=$$

Answer

3

Solution


Simplify  \(2-1\)  to  \(1\).
\[1+2\]
Simplify.
\[3\]
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