Question

tìm x

a) X + X x1,5+X x2,5= 3,75

b) X x 3 + X :5 = 6,4

Answer 1

Ta có: X x ( 1 + 1,5 + 2,5) = 3,75

X x 5 = 3,75

X = 3,75 : 5

x = 0,75

Answer 2

Ta có: X x ( 1 + 1,5 + 2,5) = 3,75

X x 5 = 3,75

X = 3,75 : 5

x = 0,75

Answer 3

Giai 

Ta có: X x ( 1 + 1,5 + 2,5) = 3,75

X x 5 = 3,75

X = 3,75 : 5

x = 0,75 

Answer 4

Ta có: X x ( 1 + 1,5 + 2,5) = 3,75

X x 5 = 3,75

X = 3,75 : 5

x = 0,75