Example

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

Question

$$( 2 x + y ) + ( 5 x - 4 y )$$

Evaluate

$7x-3y$

Show Solution

Differentiate w.r.t. x

$7$

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