Question

315+{146-x}=401

 

Answer 1

\(315+(146-x)=401\)

\(146-x=401-315\)

\(146-x= 86\)

\(x= 146-86\)

\(x= 60\)

 

Answer 2

`315+(146-x)=401`

`146-x=401-315`

`146-x=86`

`x=146-86`

`x=60`

Vậy `x=60`