
Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.


1).( 27,56 x 35 ) + ( 27,56 x 67 ) - ( 27,56 x 2)
= (964 + 1846,52) - 55,12
=2810,52 - 55,12
= 2755,4
2).( 4x 35 ) x ( 25 x 5 ) x 2
= ( 140 x 125 ) x2
= 17500 x 2
=35000
4). 3/10
5). 1188
6). 61/6

X=4 nhé bạn , mình trả lời nhanh nhất đó, còn đúng nhất nữa
\(5x.35=35\left(x+16\right)\)
\(\Leftrightarrow175x-35x-560=0\)
\(\Leftrightarrow140x-560=0\)
\(\Leftrightarrow140x=560\)
\(\Leftrightarrow x=4\)
Vây \(x=4\)

\(35\div\left(x-5\right)=35\)
\(\Rightarrow x-5=35\div35\)
\(\Rightarrow x-5=1\)
\(\Rightarrow x=1+5\)
\(\Rightarrow x=6\)
Vậy x = 6

a. (5.x + 3) : 4 – 16 = 6
(5.x + 3) : 4 = 22
(5.x + 3) = 88
5.x = 85
x = 13
b. 7(23 – 3.x) : 2 – 35 = 35
7(23 – 3.x) : 2 = 70
7(23 – 3.x) = 35
7 . 3.x = 12
7.x = 4
x = 4/7
a.) (5.x + 3) : 4 – 16 = 6
=> (5.x + 3) : 4 = 22
=> 5.x + 3 = 88
=> 5x = 85
=> x = 17
b) 7(23 – 3.x) : 2 – 35 = 35
=> 7(23 – 3.x) : 2 = 70
=>7(23 – 3.x) = 140
=> 23 – 3.x = 20
=> 3x = 3
=> x = 1

5(x-5)+35=??/ Đề sai
4(x+5)-35=-72
4(x+5)=-72+35
4(x+5)=-37
đề sai
5(x-5)+35=.
<=>(5+x)=35+5
<=>5+x=40
=>x=40-5=35
=>5(35-5)+3=158
b,4(x+5)-35=-72
<=>3x-30=-7
=>3x=23
=>x=23/3

\(\frac{3}{7}=\frac{x}{56}=\frac{24}{56}=>x=24\)
\(\frac{x}{5}=\frac{21}{35}=\frac{x}{5}=\frac{3}{5}=>x=3\)
\(\frac{42}{54}=\frac{7}{x}=\frac{7}{8}=\frac{7}{x}=>x=8\)
\(\frac{35}{x}=\frac{7}{15}=\frac{35}{x}=\frac{35}{75}=>x=75\)


b) 45^2+45.55
=45.45+45.55
=45.(45+55)
=45.100=4500
TÌM X
gọi A=1+5+5^2+....+5^100
=> 5A=5+5^3+...+5^101
=>5A-A= 5^101-1
=>4A= 5^101-1
=>A= 5^101-1:4
TUI ĐANG VỘI NÊN CHỈ GIÚP ĐƯỢC ĐẾN ĐÂY. NHƯNG BÀI TUI LÀM ĐÚNG CHUẨN LUÔN ĐẤY!

`|-x+5|=35`
`@TH1:`
`-x+5=35`
`=> -x = 35-5`
`=> -x=-40`
Vậy `-x=-40`
`@TH2:`
`-x+5=35`
`=> -x=35-5`
`=> -x=30(loại)`
Vậy `x = -40`