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124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
124 + (118 -x ) = 217 156 - ( x+61) = 82
(118-x) = 217 -124 ( x +61)= 156 - 82
(118 -x)= 93 ( x +61) = 74
x = 118 - 93 x = 74 - 61
x = 25 x = 13
156 – ( x + 61) = 82
x + 61 = 156 – 82
x + 61 = 74
x = 74 – 61
x = 13.
h) \(124+\left(118-x\right)=217\Rightarrow118-x=217-124\Rightarrow118-x=93\Rightarrow x=118-93\Rightarrow\)\(x=25\)
Vậy \(x=25\)
i) \(156-\left(x+61\right)=82\)\(\Rightarrow x+61=156-82\Rightarrow x+61=74\Rightarrow x=74-61\)\(\Rightarrow x=13\)
Vậy \(x=13\)
h) 124+(118-x)=217
118-x=217-124
118-x=93
x=118-93
x=25
i) 156-(x+61)=82
x+61=156-82
x+61=74
x =74-61
x =13
a) (x-35)-120=0
x-35= 120
➩x = 155
b)310-(118-x)=217
118 -x = 93
➩ x = 25
c)156-(x+61)=82
➩ x + 61 = 74
➩ x = 13
a: Ta có: \(x-35-120=0\)
\(\Leftrightarrow x-155=0\)
hay x=155
b: Ta có: \(310-\left(118-x\right)=217\)
\(\Leftrightarrow118-x=93\)
hay x=25
c: Ta có: \(156-\left(x+61\right)=82\)
\(\Leftrightarrow x+61=74\)
hay x=13
a) 156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
b) 124 + ( 18 - x ) = 317
18 - x = 317 - 124
18 - x = 193
x = 18 - 193
x = -175
a/ \(\left(x-35\right)-120=0\)
\(\Leftrightarrow x-35=0+120\)
\(\Leftrightarrow x-35=120\)
\(\Leftrightarrow x=120+35\)
\(\Leftrightarrow x=155\)
Vậy ...
b/ \(124+\left(188-x\right)=217\)
\(\Leftrightarrow188-x=217-124\)
\(\Leftrightarrow188-x=93\)
\(\Leftrightarrow x=95\)
Vậy ...
b/ \(156-\left(x+61\right)=82\)
\(\Leftrightarrow x+61=74\)
\(\Leftrightarrow x=13\)
Vậy ..
a) 156 - ( x + 61 ) = 82
<=> x + 61 = 74
<=> x = 13
b ) x : ( 111 - 99 ) = 17 , 5
<=> x : 12 = 17 , 5
,=> x = 210
c) ( 509 + 355 ) : x = 840 : 35
<=> 864 : x = 24
,=> x = 36
a) 156 - ( x + 16 ) = 82 x : ( 111 - 99 ) = 17.5
x + 16 = 156 - 82 x : 12 = 17.5
x + 16 = 74 x = 17.5 x 12
x = 74 - 16 x = 210
x = 58 Vậy x = 210
Vậy x = 58
c) ( 509 + 355 ) : x = 840 : 35
864 : x = 840 : 35
864 : x = 24
x = 864 : 24
x = 36
Vậy x = 36
156 - ( x + 61 ) = 82
x + 61 = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13
Tìm x:
156 - ( x + 61 ) = 82
( x + 61 ) = 156 - 82
x + 61 = 74
x = 74 - 61
x = 13