x + 66 = 123 - 2
x + 66 = 121
x = 121 - 66
x = 55 ủng hộ mk nha
x+66=123-2
x+66=121
x=121-66
x=156
t tôi nha bn
x + 66 = 123 - 2
x + 66 = 121
x = 121 - 66
x = 55
\(x+66=123-22\)
\(\Leftrightarrow x+66=101\)
\(\Leftrightarrow x=35\)
Vậy x=35
x + 66 = 123 - 2
x = 123 - 2 - 66
x = 55