a. ( x - 35) - 120 = 0
=> x-35=120
=> 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=13
a)
\(\Rightarrow x-35=120\)
\(\Rightarrow x=155\)
Vậy x = 155
b)
\(\Rightarrow242-x=217\)
\(\Rightarrow x=25\)
Vậy x = 25
c)
\(\Rightarrow95-x=82\)
\(\Rightarrow x=13\)
Vậy 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 = 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=93
x=118-93
x=25
c.156-(x+61)=81
x+61=156-81
x+61=75
x=75-61
x=14
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
x) 156-(x+61)=81
=>x+61=156-81
=>x+61=75
=>x=75-61
=>x=14
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 = 155
Vậy : x = 155
b, 124 + ( 118 - x ) = 217
188 - x = 217 - 124
188 - x = 93
x = 188 - 93
x = 25
Vậy : x = 25
c, 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
Vậy : x = 13