![](https://rs.olm.vn/images/avt/0.png?1311)
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
1. \(x-8+32=68\)
\(x-8=68-32\)
\(x-8=36\)
\(x=36+8\)
\(x=44\)
_____
2. \(x+8+32=68\)
\(x+8=68-32\)
\(x+8=36\)
\(x=36-8\)
\(x=28\)
_____
3. \(98-x+34=43\)
\(98-x=43-34\)
\(98-x=9\)
\(x=98-9\)
\(x=89\)
_____
4. \(98+x-34=43\)
\(98+x=43+34\)
\(98+x=77\)
\(x=77-98\)
\(x=-21\)
_____
5. \(x:5:4=800\)
\(x:5=800.4\)
\(x:5=3200\)
\(x=3200.5\)
\(x=16000\)
_____
6. \(18+x=384:8\)
\(18+x=48\)
\(x=48-18\)
\(x=30\)
_____
7. \(\left(84,6-2\times x\right):3,02=5,1\)
\(84,6-2.x=5,1.3,02\)
\(84,6-2.x=15,402\)
\(2.x=84,6-15,402\)
\(2.x=69,198\)
\(x=69,198:2\)
\(x=34,599\)
_____
8. \(x\times5=120:6\)
\(x.5=20\)
\(x=20:5\)
\(x=4\)
_____
9. \(\left(15\times24-x\right):0,25=100:0,25\)
\(\left(15.24-x\right):0,25=400\)
\(15.24-x=400.0,25\)
\(15.24-x=100\)
\(360-x=100\)
\(x=360-100\)
\(x=260\)
1,x-8+32=68
=>x-8=68-32=36
=>x=36+8=42
2,x+8+32=68
=>x+8=68-32=36
=>x=36-8=28
3,98-x+34=43
=>98-x=43-34=9
=>x=98-9=89
4,98+x-34=43
=>98+x=43+34=77
=>x=77-98=-21
5,x:5:4=800
=>x:20=800
=>x=800x20=16000
6,18+x=384:8=48
=>x=48-18=30
7,(84,6-2x):3,02=5,1
=>84,6-2x=5,1x3,02=15,402
=>2x=84,6-15,402=69,198
=>x=69,198:2=34,599
8,5x=120:6=20
=>x=20:5=4
9,(15x24-x):0,25=100:0,25=400
=>360-x=400x0,25=100
=>x=360-100=260.
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left[43-\left(56-x\right)\right]\times12=384\)
\(43-\left(56-x\right)=384:12\)
\(43-\left(56-x\right)=32\)
\(56-x=43-32\)
\(56-x=11\)
\(x=56-11\)
\(x=45\)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) 15 x y - 2009 = 1201
\(15.x.y=1201+2009\)
\(15.x.y=3210\)
\(x.y=3210:15\)
\(x.y=214\)
Tới đây bó tay
b)[(z + 32) - 15 ] . 2 = 60
\(\left(z+32\right)-15=60:2\)
\(\left(z+32\right)-15=30\)
\(\left(z+32\right)=30+15\)
\(z+32=45\)
\(z=45-32\)
\(z=13\)
c)[161 + (153-z)] .18 = 3870
\(161+\left(153-z\right)=3870:18\)
\(161+\left(153-z\right)=215\)
\(153-z=215-161\)
\(153-z=54\)
\(-z=54-153\)
\(-z=-99\)
\(z=99\)
d)[43 - (56 - z)] . 12 = 384
\(43-\left(56-z\right)=384:12\)
\(43-\left(56-z\right)=32\)
\(-\left(56-z\right)=32-43\)
\(56+z=-11\)
\(z=-11-56\)
\(z=-11-56\)
\(z=-67\)
Mình có thể sai đâu đó
Mong bạn thông cảm
Chúc bạn học giỏi
![](https://rs.olm.vn/images/avt/0.png?1311)
a) x-(-25+x)=13-x
⇒ x+25-x=13-x
⇒ 13-x=25
⇒ x= -12
b) 15-(30+x)=x-(27-l-8l)
⇒ 15-30-x=x-(27-8)
⇒ -15-x=x-19
⇒ -x-x=-19+15
⇒ -2x+4=0
⇒ -2x=-4
⇒ x=2
c) (12x-43).83=4.84
⇒ 12x.83-43.83=4.84
⇒ 6144x-32768=16384
⇒ 6144x=49152
⇒ x=8
a: Ta có: \(x-\left(-25+x\right)=13-x\)
\(\Leftrightarrow13-x=25\)
hay x=-12
b: Ta có: \(15-\left(30+x\right)=x-\left(27-\left|-8\right|\right)\)
\(\Leftrightarrow-15-x=x-19\)
\(\Leftrightarrow-2x=-4\)
hay x=2
c: Ta có: \(\left(12x-4^3\right)\cdot8^3=4\cdot8^4\)
\(\Leftrightarrow\left(12x-64\right)\cdot512=16384\)
\(\Leftrightarrow12x-64=32\)
hay x=8
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =>12x-64=32
=>12x=96
=>x=8
b: =>x-1=5
=>x=6
c: =>2^x*3=96
=>2^x=32
=>x=5
![](https://rs.olm.vn/images/avt/0.png?1311)
\(\left(12x-43\right)\times83=4\times84\)
\(\Leftrightarrow12x-43=\dfrac{4\times84}{83}\)
\(\Leftrightarrow12x-43=\dfrac{336}{83}\)
\(\Leftrightarrow12x=\dfrac{3905}{83}\Leftrightarrow x=\dfrac{3905}{996}\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(15x+3-4x=17x-12x+43\)
\(\Leftrightarrow15x-4x+3=x\left(17-12\right)+43\)
\(\Leftrightarrow x\left(15-4\right)+3=5x+43\)
\(\Leftrightarrow11x+3=5x+43\)
\(\Leftrightarrow6x=40\)
\(\Leftrightarrow x=40\div6\)
\(\Leftrightarrow x=\frac{40}{6}\)
\(\Leftrightarrow x=\frac{20}{3}\)
`12xx[43-(6-x)]=384`
`43-(6-x)=384:12=32`
`6-x=43-32`
`6-x=11`
`x=6-11=-5`
12.[43-(6-x)]=384
6-x=43-384:12
6-x=11
x=6-11
x=-5
Vậy: x=-5