x + 60 = 120
x = 120 - 60
x = 60
\(\frac{9}{27}\Rightarrow\frac{1}{3}\)
k nhé
x + 300 = 330
x = 330 - 300
x = 30
x + 12 = 12 x 3
x + 12 = 36
x = 36 - 12
x = 24
rồi dài quá
14785925*123=?