x+50=120-5
x+50=115
x = 65
vậy: x=65.
bạn tk mk nha.
x+50=120-5
x+50=115
x=115-50
x=65
\(x+50=120-5\)
\(x+50=115\)
\(x=115-50\)
\(x=65\)
\(x+50=120-5\)
\(x+50=115\)
\(x=115-50\)
\(x=65\)
k nha
x + 50 = 120 - 5
=> X + 50 = 115
=> X = 115 - 50
=> x = 65