Your question can be reworded as
? X 3 = 20.
All you do is divide by 3 on both sides to isolate the x. It basically looks like a magician makes the 3 disappear and then appear on the other side.


Tadah! We have mathmagically found the answer.
The answer is

in fraction form or

in decimal form.
1,000cm by 400cm
Just multiply the two number by 200
I hope this is right! And I’m sorry if it’s wrong
Answer:
go by basics u will get it easier
Step-by-step explanation:
assume X2 + e3x as some function t
now find derivative you get (1/t )dt/dx
now find dt /dx. simply derivative with respect to x
for second question use formula
dy/dx = - partial derivative of function with x / partial derivative of function with respect to y