Question

Tìm x         

38-(-12)=5-x+12

 

 

Answer 1

38-(-12)=5-x+12

38+12=5-x+12

38=5-x

5-x=38

x=5-38

x=-33

Answer 2

38-(-12)  =5-x+12

38+12    =5-x+12

38          =5-x+12-12

38          =5-x

x            =5-38

x            =-33

Vậy x =-33

Answer 3

38 - ( - 12 ) = 5 - x + 12

38 + 12 = 5 - x + 12

50 = 5 - x + 12

5 - x = 50 - 12

5 - x = 38

     x = 5 - 38

     x = - 33

Answer 4

38+12=5-x+12

50=5-x+12

5-x+12=50

x+12=5-50

x-12=-45

x=-45+12

x=-33