\(x+100=300-100\)
\(\Rightarrow x+100=200\)
\(\Leftrightarrow x=200-100\)
\(\Rightarrow x=100.\)
X + 100 = 200
X = 200 - 100
X = 100
x + 100 = 300 - 100
x + 100 = 200
x = 200 - 100
x = 100
ai tk mk mk tk lại
x + 100 = 300 - 100
x + 100 = 200
x = 200 - 100
x = 100
Chúc bạn may mắn!