Question

[phan minh hòa]

A+B=48

B+C=40\(\hept{\begin{cases}a=?\\b=?\\c=?\end{cases}}\)

A=\(\frac{2}{3}\)

Answer 1

[Nguyễn Phương Uyên]

a + b = 48 mà a = 2/3

=> b = 48 - 2/3

=> b = 142/3

b + c = 40

=> c = 40 - 142/3

=> c = -22/3

:v