Question

Câu 2: Tìm x:

a/ 6,5 +X = 5 ,4 x 1,2                                 b/ 259,2 : X = 39 + 4,2

c)  X x 5,3 = 9,01 x 4                              d) 67,89 - x = 8,7 + 4,9     

Answer 1

a: =>x+6,5=6,48

=>x=-0,02

b: =>259,2:x=43,2

=>x=6

c: =>x*5,3=36,04

=>x=6,8

d: =>67,89-x=13,6

=>x=54,29