Question

( x : 7 ) : 9 = 6400 . Х=?

Answer 1

(х:7):9=6400
х:7=6400•9
х:7=57600
х=57600•7
х=403200

проверка:
(403200:7):9=6400
57600:9=6400
6400=6400

Answer 2

Ответ:

403200

Пошаговое объяснение:

(х:7):9=6400

х:7=6400*9

х:7=57600

х=57600*7

х=403200

Answer 3

It seems like you have an equation with missing information. The equation you provided is not clear. It looks like you have an expression with two colons (::), which is not a standard mathematical operator.

If you could clarify the equation or provide more context, I'd be happy to help you solve it. Alternatively, if you made a typo or error in the equation, please correct it so that I can assist you better.