![](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)
\(12,3x=142,45-19,45\)
\(12,3x=123\)
\(x=10\)
vậy \(x=10\)
\(\left(3x-0,8\right):x+14,5=15\)
\(\left(3x-0,8\right):x=0,5\)
\(3-\frac{0,8}{x}=0,5\)
\(\frac{0,8}{x}=2,5\)
\(\Rightarrow x=0,32\)
vậy \(x=0,32\)
\(4,85+12,5x=5,58\)
\(12,5x=5,58-4,85\)
\(12,5x=0,73\)
\(x=0,0584\)
x * 12,3 = 142,45 - 19,45
=> x * 12,3 = 123
=> x = 123 : 12,3
=> x= 10
4,85 + x * 12,5 = 5,58
=> x * 12,5 = 5,58 - 4,85
=> x * 12,5 = 0,73
=> x = 0,73 : 12,5
=> x = 0,0584
![](https://rs.olm.vn/images/avt/0.png?1311)
( 0,1 + 0,2 + 0,3 + 0,4 + 0,5 + 0,6 + 0,7 + 0,8 + 0,9 ) * X = 13,5
X =3,06818
Nhớ k cho mình nhé!
![](https://rs.olm.vn/images/avt/0.png?1311)
a: =>x:1.08=2,4
hay x=2,592
b: =>x=37,6:4=9,4
c: =>x:4,8=17,4
hay x=83,52
d: =>12-x=9,4
hay x=2,6
\(a,\left(x:1,08\right)-0,6=1,8\\ \Rightarrow x:1,08=2,4\\ \Rightarrow x=2,592\\ b,x\times4=37,6\\ \Rightarrow x=9,4\\ c,x:4,8=15+2,4\\ \Rightarrow x:4,8=17,4\\ \Rightarrow x=83,52\\ d,12-x=37,6:4\\ \Rightarrow12-x=9,4\\ \Rightarrow x=2,6\\ g,x+5,84=9,16\\ \Rightarrow x=3,32\\ h,x-8,7=12,5\times5\\ \Rightarrow x-8,7=62,5\\ \Rightarrow x=71,2\)
![](https://rs.olm.vn/images/avt/0.png?1311)
![](https://rs.olm.vn/images/avt/0.png?1311)
a) x + x : 4 *1,6 + x : 6*3,6 = 222
\(\Rightarrow x+x\cdot0,4+x.0,6=222\)
\(\Rightarrow x.\left(1+0,4+0,6\right)=222\)
\(\Rightarrow x.2=222\)
\(\Rightarrow x=222:2=111\)
b) \(\left(x+0,2\right)+\left(x+0,4\right)+...+\left(x+1\right)=9,6\)
\(\Rightarrow\left(x+x+x+x+x\right)+\left(0,2+0,4+0,6+0,8+1\right)\) =9,6
\(\Rightarrow5.x+\left[\left(1-0,2\right):0,2+1\right].\left(1+0,2\right):2\) = 9,6
\(\Rightarrow5.x+3=9,6\)
\(\Rightarrow5.x=9,6-3=6,6\)
\(\Rightarrow x=6,6:5=1,32\)
(x+0,2)+(x+0,4)+(0,6)+(0,8)+(x+1)=9,6
5x+(0,2+0,4+0,6+0,8+1)=9,6
5x+3=9,6
5x =9,6-3
5x =6,6
x =6,6:5
x =1,32
![](https://rs.olm.vn/images/avt/0.png?1311)
0,8 x 45,67 x 12,5
= ( 0,8 x 12,5 ) x 45,67
= 10 x 45,67
= 456,7