The movement of water on earth surface does bot change very much true or false

I think that it's false

Explanation:

The reason is because there is a thing called a 'Water Cycle'. It is basically the continuous movement of water on the surface of the Earth.

P.S. if I get it wrong, forgive me

equal distribution i think.

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

: -)