Question

Tìm X:

X*3+X:0,5 =12,8

Answer 1

=> x*3 + x *2 =12,8

    x*5 =12,8

    x= 2,56

Answer 2

x*3 + x : 0,5 = 12,8 

\(\Rightarrow\)x*3 + x*2 = 12,8 

\(\Rightarrow\)x*5 = 12,8

\(\Rightarrow\)x = \(\frac{12,8}{5}\)= 2,56

Answer 3

x=2,56 nha

HT