a) 124 + (118 - x) = 217
242 - x = 217
x = 242 - 217
x = 25
(x-36)/18=12
=>x-36=12*18
=>x-36=216
=>x=216+36
=>x=252
\(124+\left(118-x\right)=217\)
\(118-x=217-124\)
\(118-x=83\)
\(x=118-83\)
Vậy \(x=35\)
b) \(\left(x-36\right):18=12\)
\(x-36=12\cdot18\)
\(x-36=216\)
\(x=216+36\)
Vậy \(x=252\)
a ) 124 + ( 118 - x ) = 217
118 - x = 83
x = 118 - 83
x = 35
b )( x - 36 ) : 18 = 12
x - 36 = 216
x = 216 + 36
x = 252
