34x-14=25x-23x=294÷23x=25．

Question

(3)/(4) x- (1)/(4) = (2)/(5)

x- (2)/(3) x= (2)/(9)

4÷ (2)/(3) x= (2)/(5) ．

Answer 1

（1） (3)/(4) x- (1)/(4) = (2)/(5) ，
(3)/(4) x- (1)/(4) + (1)/(4) = (2)/(5) + (1)/(4) ，
(3)/(4) x= (13)/(20) ，
(3)/(4) x÷ (3)/(4) = (13)/(20) ÷ (3)/(4) ，
x= (13)/(15) ；

（2）x- (2)/(3) x= (2)/(9) ，
(1)/(3) x= (2)/(9) ，
(1)/(3) x÷ (1)/(3) = (2)/(9) ÷ (1)/(3) ，
x= (2)/(3) ；

（3）4÷ (2)/(3) x= (2)/(5) ，
4÷ (2)/(3) x× (2)/(3) x= (2)/(5) × (2)/(3) x，
(2)/(3) x× (2)/(5) =4，
(4)/(15) x=4，
(4)/(15) x÷ (4)/(15) =4÷ (4)/(15) ，
x=15．