x + 123 = 123 - 123 + 123
x + 123 = 123
x = 123 - 123
x = 0
x + 123 = 123 - 123 + 123
x + 123 =0 + 123
x + 123 =123
x = 123 - 123
x = 0
K MIK NHÉ!
x + 123 = 123 - 123 + 123
x = 123 - 123 + 123 - 123
x = 0
x + 123 = 123 - 123 + 123
x = 123 - 123 + 123 - 123
x = 0
x + 123 = 123 - 123 + 123
x + 123 = 123
x = 123 - 123
x = 0
k e nhé
thank you nhiều
\(x+123=123-123+123\)
\(\Rightarrow x+123=123\)
\(\Rightarrow x=123-123\)
\(\Rightarrow x=0\)
x + 123 = 123 - 123 + 123
x + 123 = 123
x = 123 - 123
x =0
\(x+123=123-123+123\)
\(x+123=123\)
\(x=123-123\)
\(x=0\)
x+123=0+123
x+123=123
x=123-123
x=0
Vay x=0
x+ 123 = 123 - 123 + 123
x = 123 - 123 + 123 - 123
x = 0 + 123 - 123
x= 123- 123
x= 0
đap số x = 0