Example

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

Question

$$2|x+1|-|x+3|+|2-x|$$

Evaluate

$2|x+1|-|x+3|+|2-x|$

Differentiate w.r.t. x

$2sign(x+1)-sign(x+3)-sign(2-x)$

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