Question

Gấp ạ

Tìm x, biết

a) 4x + 1/3 = 3/2

b) 0,12 - 3x = 1/4

c) 1/2 : x - 5/3 = -7/4

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

Answer 1

a: =>4x=3/2-1/3=9/6-2/6=7/6

=>x=7/24

b: =>3x=3/25-1/4=12/100-25/100=-13/100

=>x=-13/300

c: =>1/2:x=-7/4+5/3=-21/12+20/12=-1/12

=>x=-1/2:1/12=-6

d: =>-1/15-3x=3/4

=>3x=-1/15-3/4=-4/60-45/60=-49/60

=>x=-49/180

Answer 2

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

    4x=7/6

    ×  =7/6:4

    x  =7/24

b)0,12-3x=1/4

   3x          =0,12-0,25

    3x         =-0,13

      x         =-0,13:3

      x         =-13/300