Example

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

Question

$$(3a+2b)+(4a-7b)$$

Evaluate

$7a-5b$

Show Solution

Differentiate w.r.t. a

$7$

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