![](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)
![](https://rs.olm.vn/images/avt/0.png?1311)
x nhan 109 - x nhan 8 - x = 1200
x nhan 109 - x nhan 8 - x nhan 1 = 1200
x nhan (109 - 8 - 1) = 1200
x nhan 100 = 1200
x = 1200 : 100
x = 12
Vay x = 12
![](https://rs.olm.vn/images/avt/0.png?1311)
x+2+x+4+x+6+x+8=1200
x+(2+4+6+8)=1200
x+20=1200
x=1200-20
x=1180
cho minh nhe!
\(x+2+x+4+x+6+x+8=1200\)
\(4x+20=1200\)
\(4x=1200-20\)
\(4x=1180\)
\(x=1180:4\)
\(x=295\)
![](https://rs.olm.vn/images/avt/0.png?1311)
\(5\left(x+3\right).x=109\)
\(=>5x^2+15x=109\)
\(=>5x^2+15x-109=0\)
\(5.x+3.x=109\)
\(x.\left(5+3\right)=109\)
\(x.8=109\)
\(x=\frac{109}{8}\)
b) \(189:x-37:x=8\)
\(x:\left(189-37\right)=8\)
\(x:152=8\)
\(x=8.152\)
\(x=1216\)
![](https://rs.olm.vn/images/avt/0.png?1311)
y x ( 8 + 2 ) = 420
y x 10 = 420
y = 420 : 10
y = 42
y x ( 109 - 9 ) = 2300
y x 100 = 2300
y = 23
![](https://rs.olm.vn/images/avt/0.png?1311)
a, => x-13 = 184 : 8 = 23
=> x = 23 + 13 = 36
b, => x : 7 = 833 : 7 = 119
=> x = 119 x 7 = 833
c, => x+5 = 729 : 9 = 81
=> x = 81 - 5 = 76
d, => 50 - (17-x) = 36
=> 17-x = 50 - 36 = 14
=> x = 17 - 14 = 3
Tk mk nha
a)(x-13)*8=184
x-13=184:8
x-13=23
x=23+13
x=36
b)7*(x:7)=833
x:7=833:7=119
x=119*7=833
Chỉ làm thế thôi , làm tiếp
![](https://rs.olm.vn/images/avt/0.png?1311)
a, x-13=184:8
x-13=23
x=23+13
x=36
Vậy x=36
b,x:7=833:7
x:7=119
x=119x7
x=833
Vậy x=833
c, x+5=729:9
x+5=81
x=81-5
x=76
Vậy x=76
d,50-(17-x)=36
17-x=50-36
17-x=14
x=17-14
x=3
Vậy x=3
Hok tốt
x * 109 - x * 8 - x = 1200
x * 109 - x * 8 - x * 1 = 1200
x * ( 109 - 8 - 1 ) = 1200
x * 100 = 1200
x = 1200 : 100
x = 12
tk mình nhé
bài này đúng 100% luôn
la 12 day ban nhe