a) ( x - 35 ) - 120 = 0
x - 35 = 0 + 120
x - 35 = 120
x = 120 + 35
x = 155
b) 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
c) 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
a) ( x - 35 ) - 120 = 0
x - 35 = 0 + 120
x - 35 = 120
x = 120 - 35
x = 85
b) 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
c) 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
A. ( x - 35 )-120=0
x - 35 = 0 + 120
x - 35 = 120
x = 120 + 35
x - 155
B. 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 83
x = 118 - 83
x = 25
C. 156 - ( x + 61) = 82
x + 61 = 156 -82
x + 61 = 64
x = 64 - 61
x = 3
(x-35)-120= 0
x-35=120
x=120+35
x=155
t cho mk nha d am cua mk cn nhiu lam
a)(x-35)-120=0
x-35 =0+120=120
x =120+35 =155
b)124+(118-x)=217
118-x =217-124= 93
x =118-93
x =25
c)156-(x+61)=82
x+61 =156-82=74
x =74-61
x =13