A) 124+(118-x) =365
B) 814-( x-305 ) =712
C) x -32:16=48
D) (x-32 ):16=48
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(X-3)-120=0
X-123=0
X=123
8x-3=0
8x=3
x=3/8
124+(118-x)=217
118-x=93
x=25
156-(x+61)=82
x+61=74
x=13
814-(x-305)=712
x-305=102
x=407
(X-32)÷16=48
x-32=768
x=800
X-32: 16=48
x-2=48
x=50
( x - 3 ) - 120 = 0
<=> x - 3 = 120
<=> x = 120 + 3
<=> x = 123
8x - 3 = 0
<=> 8x = 3
<=> x = 3 : 8
<=> x = 3/8
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
814 -( x - 305 ) = 712
<=> x - 305 = 814-712
<=> x - 305 = 102
<=> x =102 + 305
<=> x = 407
( x - 32) : 16 = 48
<=> x - 32 = 48 x 16
<=> x - 32 = 768
<=> x = 768 + 32
<=> x = 800
x - 32 : 16 = 48
<=> x - 2 = 48
<=> x = 48 + 2
<=> x = 50
a, 124 + (118 - x) =217
118 - x = 217 -124
118 - x = 93
x = 118 - 93
x = 25
Vậy x = 25
b, 814 - (x - 303) =712
x - 303 = 814 - 712
x - 303 = 102
x = 102 + 303
x = 405
Vậy x = 405
c, x - 32 : 16 =48
x - 2 = 48
x = 48 +2
x = 50
Vậy x = 50
d, (x - 32) : 16 = 48
x - 32 = 48 x 16
x - 32 = 768
x = 768 + 32
x = 800
Vậy x = 800
a) 124 + ( 118 - x ) = 217
118 - x = 217 - 124
118 - x = 93
x = 118 - 93
x = 25
b) 814 - ( x - 303 ) = 712
x - 303 = 814 - 712
x - 303 = 102
x = 102 + 303
x = 405
c) x - 32 : 16 = 48
x - 2 = 48
x = 48 + 2
x = 50
d) ( x - 32 ) : 16 = 48
x - 32 = 48 . 16
x - 32 = 768
x = 768 + 32
x = 800
a) 142+(118-x)=217
118-x =217-142
118-x =75
x =43
b) 818-(x-305)=712
x-305 =818-712
x-305 = 106
x = 411
c)x-32:16=48
x-2 =48
x =50
d)(x-32):16=48
x-32 =48.16
x-32 =768
x = 800
b) 814-(x-305)=172
x-305=814-172
x =642
x=814-642
x=172
c) x-32:16=48
x-2 =48
x =48+2
x =50
2 phan kia ban tu lam nhe
xong nho an dung cho minh
814 - ( x - 305 ) : 16 = 48
( x - 305 ) : 16 = 814 - 48
( x - 305 ) : 16 = 766
( x - 305 ) = 12256
x - 305 = 12561
a.x-25=0+110
x+25=110
x=85
b.118-x=142-124
118-x=18
x=100
c.3x+22=124-42
3x+22=82
3x=88-22
3x=66
x=22
d.x-2=18
x=20
e.x-32=18.16
x-32=288
x=320
f.19-2x=294:42
19-2x=7
2x=19-7
2x=12
x=6
Dung thi k cho minh nha!!!
1/ a, \(50-\left[30-\left(6-2\right)^2\right]\)
\(=50-\left[30-3^2\right]\)
\(=50-30+9\)
\(=20+9=29\)
2/ a, \(124+\left(118-x\right)=217\)
\(\Leftrightarrow118-x=3\)
\(\Leftrightarrow x=115\)
Vậy ...
b/ \(814-\left(x-305\right)=712\)
\(\Leftrightarrow x-305=102\)
\(\Leftrightarrow x=407\)
Vậy ...
c/ \(x-32:16=48\)
\(\Leftrightarrow x-2=48\)
\(\Leftrightarrow x=50\)
Vậy ...
d/ \(\left(x-32\right):16=48\)
\(\Leftrightarrow x-32=768\)
\(\Leftrightarrow x=800\)
Vậy .
7.x-8=718 (x-25)-155=0 124+(118-x)=717 (x-32):16=48
7.x=718+8 x-25=0+155 118-x=717-124 x-32=48.16
7.x=726 x-25=155 118-x=593 x-32=768
x=726:7 x=155+25 x=118-593 x=768+32
x=103,7142857 x=180 x=-475 x=800
a) x=-123
b) x=407
c) x=50
d) x=800
\(a,\)\(124+\left(118-x\right)=365\)
\(118-x=365-124\)
\(118-x=241\)
\(x=118-241\)
\(x=\left(-123\right)\)
\(b,814-\left(x-305\right)=712\)
\(x-305=814-712\)
\(x-305=102\)
\(x=102+305\)
\(x=407\)
\(c,\)\(x-32\div16=48\)
\(x-2=48\)
\(x=48+2\)
\(x=50\)
\(d,\)\(\left(x-32\right):16=48\)
\(x-32=48.16\)
\(x-32=768\)
\(x=768+32\)
\(x=800\)