Example

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

Question

$$9a+2b-6+6a-9b$$

Evaluate

$15a-7b-6$

Show Solution

Differentiate w.r.t. a

$15$

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