Question

tìm x bt

Answer 1

`a) 5-(4-x) =6`

`<=> 4-x =5-6 =-1`

`=> x = 4-(-1)=4+1 =5`

Vậy `x=5`

Answer 2

\(4-x=5-6\\ 4-x=\left(-1\right)\\ x=4-\left(-1\right)\\ x=5\)

Answer 3

a,5 - (4 - x) = 6

         4 - x  = 5 - 6

         4 - x  = -1

              x  = 4 - (-1)

              x = 5

                   Vậy x = 5