If you know BEDMAS, this'll help.
B = Brackets
E= Exponents
D= Division
M= Multiplication
A= Addition
S= Subtraction
This is the order in which you need to solve the question.
Since brackets is first on the list, we start there.
Now, you want to start with the innermost brackets.
4×{(200-50÷5)-[(35÷7)•(35÷7)-4×3]}
Start with the (200-50/5) bracket.
We know that division comes before multiplication, so do that step first.
We should get
(200-10)
And finally, we'll get 190.
Next, solve for the 35/7 brackets, to which you should get 5.
You should now have:
4×{(190)-[(5)•(5)-4×3]}
Now, solve for the (5x5-4x3) bracket.
Multiplication comes before subtraction, so let's do that first.
(25-(12))
We should get
13
We should have
4×{(190)-[13]}
Solve for 190-13 and we should have
4 x {177}
Now, just multiply
708
Therefore, the answer should be 708.