2.( 1) (x-2)x (2) 2-3+3x=0

(1) x = 3 is the solution of the original equation (2)x=-2 is the solution of the original equation.

(1) x =-4 is the solution of the original equation (2)x=- 1/3 is the solution of the original equation.

5.( 1) x= 1/4 is the solution of the original equation (2)x=5/4 is the solution of the original equation.

(3)x= 1/2 is the solution of the original equation (4)x=3 is the solution of the original equation.

6. Solution: According to the meaning of the problem:

x/69000-x=5/3

x=43 125

Test: x=43 125 is the solution of the original equation.

It should be. This is what our teacher said.