Question

a)x:3=2x-5
b) 3-x+2:4=4+x-1/3
c)5x-4:2=x:3-2+2 1/6
d) x+3:2-x+1:3=2x+9:6

Answer 1

a)x:3=2x-5

⅓x=2x-5

-1⅔x=-5/:(-1⅔)

x=-5*(-⅗)

x=3

b) 3-x+2:4=4+x-⅓

3-x+½=4+x-⅓|*6

18-6x+3=24+6x-2

-12x=1|:(-12)

x=-1/12
c)5x-4:2=x:3-2+2 1/6

5x-2=⅓x-2+13/6|*6

30x-12=2x-12+13

28x=13|:28

x=13/28

d) x+3:2-x+1:3=2x+9:6

x+3/2-x+⅓=2x+3/2

-2x=3/2-3/2-⅓

-2x=-⅓/:(-2)

x=-⅓*(-½)

x=⅙ 

 

licze na naj ;d