Tìm x
a) x x 48 = 26880
b) 5917 - x = 293
7. Tìm X
a) X x 45 - 3209 = 13036
b) 12925 : X 96 = 5568
c) X : 48 : 25 = 374
a: =>45x=16245
hay x=361
c: =>x=374x48x25=448800
a) X x 45 - 3209 = 13036
X x 45 = 13036 + 3209
X x 45 = 16245
X = 16245 : 45
X = 361
b) 12925 : X 96 = 5568
c) X : 48 : 25 = 374
X = 374 x 48 x 25
X = 17952 x 25
X = 448800
Câu 1: Tìm x
a, x x 124 + 5276 = 48304 b, x x 45 - 3209 = 13036
x : 125 x 64 = 4608 x : 48 : 25 = 374
trl sẽ có like
a)x.124+5276=48304
=>x.124=43028
=>x=347
x:125.64=4608
=>x:125=72
=>x=9000
b)x.45-3209=13036
=>x.45=16245
=>x=361
x:48:25=374
=>x:48=9350
=>x=448800
a:
\(x\times124+5276=48304\\ \Rightarrow x\times124=43028\\ \Rightarrow x=347\\ x:125\times64=4608\\ \Rightarrow x:125=72\\ \Rightarrow x=9000\)
b:
\(x\times45-3209=13036\\ \Rightarrow x\times45=16245\\ \Rightarrow x=361\\ x:48:25=374\\ \Rightarrow x:48=9350\\ \Rightarrow x=448800\)
B3:Tìm x
a (x-12)+48=96
b56-(17+x)=24
c 5x+57=112
d 87-2x=65
e (x-46):32=2
g 120-3(x+1)=102
a (x-12)+48=96
x-12=96-48=48
x=12+48=60
b56-(17+x)=24
17+x=56-24
17+x=32
x=31-17=15
c 5x+57=112
5x=112-57=55
x=11
d 87-2x=65
2x=87-65=22
x=11
e (x-46):32=2
x-46=64
x=110
g 120-3(x+1)=102
3(x+1)=120-102=18
x+1=6
x=5
a: Ta có: \(\left(x-12\right)+48=96\)
\(\Leftrightarrow x-12=48\)
hay x=60
b: ta có: \(56-\left(x+17\right)=24\)
\(\Leftrightarrow x+17=32\)
hay x=15
c: Ta có: \(5x+57=112\)
\(\Leftrightarrow5x=55\)
hay x=11
d: Ta có: 87-2x=65
\(\Leftrightarrow2x=22\)
hay x=11
bài 1
2/5-3/5:(0,75+30%)
bài 2:tìm x
a) x/6= -11/3
b) 16/5 của x là 48
Bài 1
2/5 - 3/5 : (0,75 + 30%)
= 2/5 - 3/5 : 21/20
= 2/5 - 4/7
= -6/35
‐--------------------
Bài 2
a) x/6 = -11/3
x = -11/3 . 6
x = -22
b) 16/5 của x là 48
x = 48 : 16/5
x = 15
bài1
2/5-3/5:(0,75+30%)=2/5-3/5:(75/100+30/100)
=2/5-3/5:105/100
=2/5-3/5:21/20
= 2/5-3/5. 20/21
=2/5-1/1.4/7
=2/5-4/7
=2/5+-4/7
=14/35+-20/35
=34/35
Tìm x: 8658 : x = 293
89658 : x = 293
x = 89658 :293
x = 306
Tìm x :
a) x x 405 = 86265
b) 8658 : x = 293
a) x x 405 = 86265
x = 86265 : 405
x = 213
b) 89658 : x = 293
x = 89658 :293
x = 306
bài 1 : Tìm x
a) 5 + ( x + 27 ) = 64
b) 64 - ( x - 2 ) = 25
c) 7 - ( x + 5 ) + 14 = 343
d) 5 . x - 25 = 10
e) 4 . ( x - 5 ) - 8 = 48
f) 49 - ( 15 + x ) = 12
g) 49 - 7. ( 13 - x ) = 14
h) 155 - 10. ( x + 1 ) = 55
5 + ( x + 27 ) = 64
( x + 27 ) = 64 - 5 ( x + 27 ) = 59 x = 59 - 27 x = 32a) \(\Rightarrow x+27=59\Rightarrow x=32\)
b) \(\Rightarrow x-2=39\Rightarrow x=41\)
c) \(\Rightarrow x+5=-322\Rightarrow x=-327\)
d) \(\Rightarrow5x=35\Rightarrow x=7\)
e) \(\Rightarrow4\left(x-5\right)=56\Rightarrow x-5=14\Rightarrow x=19\)
f) \(\Rightarrow15+x=37\Rightarrow x=22\)
g) \(\Rightarrow7\left(13-x\right)=35\Rightarrow13-x=5\Rightarrow x=8\)
h) \(\Rightarrow10\left(x+1\right)=100\Rightarrow x+1=10\Rightarrow x=9\)
Tìm X :
89 658 : X = 293
Bài 1 : Tìm x
X x 405 = 86265
89658 : X = 293
Bài 1 :
X x 405 = 86265 89658 : X = 293
X = 86265 : 405 X = 89658 : 293
X = 213 X = 306
\(x\times405=86265\)
\(x=86265:405\)
\(x=213\)
\(89658:x=293\)
\(x=89658:293\)
\(x=306\)