1/4x=5/4

x=5

2x- 1/6=5x+ 1/8

2x-5x= 1/8+ 1/6

-3x=7/24

x=7/72

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

1/5x-3/2+x= 1

6/5x=5/2

x=25/ 12

1/7(2x+ 14)=4-2x

2/7x+2=4-2x

16/7x=2

x=7/8

3/ 10(200+x)-2/ 10(300-x)= 300 * 9/25

60+3/ 10x-60+2/ 10x = 108

1/2x= 108

x=2 16

Whew, I'm exhausted. Give me some advice.