Question

maths（right解方程(5x-4)3=2又1/3(x-1)/4-1=(2x+1)/61/2(2x-3)-(x-4)

Answer 1

(5x-4)/3=2又1/3=7/3

5x-4=7

x=11/5

(x-1)/4-1=(2x+1)/6

两边乘12

3x-3-12=4x+2

4x-3x=-3-12-2

x=-17

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

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

x+1=2

x=1

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

两边乘10

10x-5x+5=20-2x+6

10x-5x+2x=20+6-5

7x=21

x=3

(x-1)/0.3-(x+2)/0.5=1.2

两边乘1.5

5x-5-3x-6=1.8

2x=12.8

x=6.4

(0.1x-0.2)/0.5-(0.01x+0.03)/0.1=1

2(0.1x-0.2)-10(0.01x+0.03)=1

0.2x-0.4-0.1x-0.3=1

0.1x=1.7

x=17