Question

Answer 1

a) 

x - 3,12 = 4,22 - 5,22

x - 3,12 = -1

x = -1 + 3.12

x =2,12

b) x - 3/2 = -5/3

x = -5/3 + 3/2

x = -1/6

Answer 2

a)

x - 3,12 = 4,22 - 5,22

x - 3,12 = - 1

x           = (-1 )+ 3,12

x          = 2, 12

b)

x - 3/2 = -5/3

x        = -5/3 + 3/2

x       = -1/6

Answer 3

bài 3;

a) x-3,12=-1

x=2,12

vậy x=2,12

b)x-3/2=-5/3

x=-1/6

vậy x= -1,6

Answer 4

Tham khảo

a)

x - 3,12 = 4,22 - 5,22

x - 3,12 = -1

x             = -1 + 3.12

x              =2,12

b) x - 3/2 = -5/3

    x         = -5/3 + 3/2

    x          = -1/6