Question

Tìm x biết : x - 1 = 2

Answer 1

x - 1 = 2 

x = 2 + 1

x = 3

Answer 2

x-1=2

x=2+1

x=3

Answer 3

x-1=2

x   =2+1

x=3

Answer 4

x - 1 = 2

        x = 2 + 1 

        x = 3