\(319-7.\left(x+1\right)=200\)
\(\Rightarrow7.\left(x+1\right)=319-200\)
\(\Rightarrow7.\left(x+1\right)=119\)
\(\Rightarrow x+1=119:7=17\)
\(\Rightarrow x=17-1=16\)
Vậy : \(x=16\)
7 . ( x + 1 ) = 319 -200
7 . (x + 1 ) =119
( x + 1) =119 : 7
x + 1 = 17
x =17 -1
x =16
Vậy x = 16