Question

640÷(25-x)=40 пж пжпж

Answer 1

640/40=25-х
16=25-х
х=25-16
х=9

Answer 2

640:(25-х) =40 
25-х=640:40 
25-х=16 
х=25-16 
х=9 
проверка: 640:(25-9)=40

Answer 3

Sure, I can help you solve this equation:

Starting with the given equation:

640÷(25-x)=40

We can simplify by multiplying both sides of the equation by (25-x):

640 = 40(25-x)

Expanding the right side of the equation:

640 = 1000 - 40x

Subtracting 1000 from both sides of the equation:

-360 = -40x

Dividing both sides of the equation by -40:

9 = x

Therefore, the solution to the equation is x = 9.

I hope that helps! Let me know if you have any other questions.