\(30-x=200-175=25\)
\(x=30-25\)
\(x=5\)
k mk nha
175 + (30-x) =200
(30 -x) =200 -175
30 -x = 25
x= 30 -25
x= 5
\(175+\left(30-x\right)=200\)
\(\Rightarrow\text{ }30-x=200-175\)
\(\Rightarrow\text{ }30-x=25\)
\(\Rightarrow\text{ }x=30-25\)
\(\Rightarrow\text{ }x=5\)
\(\text{Vậy : }x=5\)